Wireless sensor alerts

1. A method performed at a wireless device, the method comprising:

detecting a signal representing an environmental state in the vicinity of the wireless device;

comparing the environmental state represented by the signal against a set of remotely programmable rules at the wireless device;

if the environmental state satisfies at least one of the rules; generating, based on the satisfied rule, a communication for transmission to a wireless network;

detecting a request to modify the programmable rules;

determining whether parameters for a rule have been received; and

if the parameters have been received, modifying the rules, wherein modifying the rules comprises adding a new rule based on the received parameters.

2. The method of claim 1 , further comprising:

detecting the environmental state; and

generating the signal representing the environmental state.

3. The method of claim 1 , wherein the signal represents sound level.

4. The method of claim 1 , further comprising identifying the environmental state represented by the signal.

5. The method of claim 4 , wherein identifying the environmental state represented by the signal comprises:

determining an environmental condition associated with the state; and

determining a level of the environmental condition.

6. The method of claim 1 , wherein at least one of the rules comprises multiple conditions that must be satisfied.

7. The method of claim 1 , wherein the communication comprises a Short Message Service message.

8. The method of claim 1 , wherein the communication is destined for a second wireless device.

9. The method of claim 1 , wherein at least one of the rules specifies a level that an environmental state must exceed for the rule to be satisfied.

10. The method of claim 1 , wherein the request is from a second wireless device.

11. The method of claim 1 , further comprising:

detecting a request to open a voice channel in response to the communication; and

establishing the voice channel using the wireless device.

12. The method of claim 1 , wherein at least one of the rules specifies multiple communications for an environmental state.

13. The method of claim 1 , wherein the wireless device comprises a cellular telephone.

14. A wireless device comprising:

a sensor operable to detect an environmental state in the vicinity of the wireless device and to generate a signal representing the environmental state;

a processor coupled to the sensor, the processor operable to:

detect the signal representing the environmental state,

compare the environmental state represented by the signal against a set of remotely programmable rules,

if the environmental condition satisfies at least one of the rules, generate, based on the satisfied rule, a communication for transmission to a wireless networks,

detect a request to modify the programmable rules,

determine whether parameters for a rule have been received, and

if the parameters have been received, modify the rules, wherein modifying the rules comprises adding a new rule based on the received parameters; and

a transceiver coupled to the processor, the transceiver operable to wirelessly send the communication.

15. The wireless device of claim 14 , further comprising:

an audio input device coupled to the processor, the audio input device operable to detect a user's voice and to generate a signal representative thereof;

an audio output device coupled to the processor, the audio output device operable to receive a signal representative of sound and to generate sound representative thereof;

a visual output device coupled to the processor, the visual output device operable to receive a signal representative of visual information and to generate visual information representative thereof; and

a user-manipulable input device coupled to the processor, the user-manipulable input device operable to detect user manipulation thereof and to generate a signal representative thereof.

16. The wireless device of claim 14 , wherein the processor is further operable to identify the environmental state represented by the signal.

17. The wireless device of claim 16 , wherein the processor is operable to determine an environmental condition associated with the environmental state and to determine a level of the environmental condition to identify the environmental state represented by the signal.

18. The wireless device of claim 14 , wherein at least one of the rules specifies a level that an environmental state must exceed for the rule to be satisfied.

19. The wireless device of claim 14 , wherein the processor is further operable to:

detect a request to open a voice channel in response to the communication; and

establish the voice channel using the wireless device.

20. The wireless device of claim 14 , wherein at least one of the rules comprises multiple conditions that must be satisfied.

21. The wireless device of claim 14 , wherein the communication is destined for a second wireless device.

22. The wireless device of claim 14 , wherein the wireless device comprises a cellular telephone.

23. An article comprising a machine-readable medium storing instructions operable to cause one or more machines to perform operations comprising:

determining whether a signal representing an environmental state in the vicinity of a wireless device has been detected at the wireless device;

comparing the environmental state represented by the signal against a set of remotely programmable rules at the wireless device;

if the environmental state satisfies at least one of the rules, generating, based on the satisfied rule, a communication for transmission to a wireless network;

detecting a request to modify the programmable rules;

determining whether parameters for a rule have been received; and

if the parameters have been received, modifying the rules, wherein modifying the rules comprises adding a new rule based on the received parameters.

24. The article of claim 23 , wherein the instructions are further operable to cause one or more machines to perform operations comprising identifying the environmental state represented by the signal.

25. The article of claim 24 , wherein identifying the environmental state represented by the signal comprises:

determining an environmental condition associated with the state; and

determining a level of the environmental condition.

26. The article of claim 23 , wherein at least one of the rules comprises multiple conditions that must be satisfied.

27. The article of claim 23 , wherein the communication is destined for a second wireless device.

28. The article of claim 23 , wherein at least one of the rules specifies a level that an environmental state must exceed for the rule to be satisfied.

29. The article of claim 23 , wherein the instructions are further operable to cause one or more machines to perform operations comprising:

detecting a request to open a voice channel in response to the communication; and

establishing the voice channel using the wireless device.

30. A framework for wireless sensor alerts, the framework comprising:

a rule set comprising programmable rules that specify conditions under which communications are to be sent based on an environmental state in the vicinity of a wireless device and the communications to be sent;

a rule engine operable to:

receive a proposition for a rule, the proposition representing an environmental state in the vicinity of a wireless device,

compare the proposition against the rules, and

if the proposition satisfies a condition of at least one of the rules, determine, based on the satisfied rule, a communication for transmission to a wireless network; and

a rule editor operable to modify the rules in the rule set based on received rule parameters, the operations comprising:

detecting a request to modify the programmable rules;

determining whether parameters for a rule have been received; and

if the parameters have been received, modifying the rules, wherein modifying the rules comprises adding a new rule based on the received parameters.

31. The framework of claim 30 , wherein the environmental state comprises an environmental condition and a level of the environmental condition.

32. The framework of claim 30 , wherein at least one of the rules has multiple conditions that must be satisfied.

33. The framework of claim 30 , wherein the communication is destined for a second wireless device.

34. The framework of claim 30 , wherein at least one of the rules specifies a level that an environmental state must exceed for the rule to be satisfied.

35. A system for wireless sensor alerts, the system comprising:

a wireless network operable to receive communications from and send communications to wireless telephones;

a first wireless telephone operable to wirelessly send communications to and receive communications from the wireless network, the wireless telephone comprising:

a sensor operable to detect an environmental state in the vicinity of the wireless telephone and to generate a signal representative thereof,

a microprocessor coupled to the sensor, the microprocessor operable to:

detect the signal;

generate a rule proposition based on the signal, the proposition specifying an environmental condition and level associated with the state;

compare the rule proposition to rules in a remotely programmable rule database to determine whether the proposition satisfies a condition of a rule;

if the proposition satisfies a condition of a rule, determine, based on the satisfied rule, a message for communication to a second wireless telephone;

determine whether a communication regarding opening a voice channel in response to the message has been received from the second wireless telephone;

if the communication has been received, open a voice channel to the second wireless telephone;

detect a request to modify the programmable rules;

determine whether parameters for a rule have been received; and

if the parameters have been received, modify the rules, and

a transceiver coupled to the processor, the transceiver operable to send the message to the wireless network; and

the second wireless telephone, the second wireless telephone operable to wirelessly send communications to and receive communications from the wireless network, the wireless telephone operable to:

receive the message from the first wireless telephone,

visually present the message,

determine whether a user desires to open a voice channel to the first wireless telephone in response to the message,

if a user desires to open a voice channel in response to the message, send the communication regarding opening a voice channel to the wireless network for communication to the first wireless telephone,

visually present a user interface for modifying the rules,

detect user commands indicating parameters for a rule, and

send a communication containing the parameters to the wireless network for conveyance to the first wireless telephone.