Mobile device with a concealed keyboard

1. An electronic device comprising:

a first housing including two outer, peripheral side edges;

a second housing including two outer, peripheral side edges and being rotatably coupled to the first housing;

a receiving portion formed in a rear surface of the first housing and configured to receive the second housing and

a concealment cover coupled to the rear surface of the first housing, wherein the concealment cover is positioned exteriorly to the second housing when the second housing is in the receiving portion;

wherein when the second housing is in the receiving portion, each of the two outer, peripheral side edges of the second housing is co-terminal with a corresponding outer, peripheral side edge of the first housing.

2. The electronic device of claim 1 ,

wherein the first housing comprises a front surface; and

the electronic device further comprises a display housed in a front surface of the first housing, and a keyboard housed in a front of the second housing and being exposed when the second housing is in an open configuration.

3. The electronic device of claim 2 , further comprising a plurality of electronic components housed in the first housing, said plurality of electronic components being communicatively coupled to at least one of the display or the keyboard.

4. The electronic device of claim 2 , wherein the keyboard is substantially covered by the concealment cover when the second housing and the concealment cover are in a closed configuration such that the concealment cover is substantially parallel with the rear surface of the first housing.

5. The electronic device of claim 4 , wherein the concealment cover is substantially flush with the rear surface of the first housing.

6. The electronic device of claim 1 , wherein in a closed configuration, a rear of the second housing faces the rear surface of the first housing and a front of the second housing is covered by the concealment cover.

7. The electronic device of claim 1 , wherein the second housing comprises a front, and wherein in an open configuration the front of the second housing is exposed and the concealment cover is rotated such that it forms an acute angle with respect to the receiving portion.

8. The electronic device of claim 1 , wherein the rear surface of the first housing comprises a hinged portion coupled to the concealment cover.

9. The electronic device of claim 8 wherein the hinged portion is formed on a coupling edge of the rear surface of the first housing, the coupling edge defining a boundary the receiving portion.

10. The electronic device of claim 1 , wherein the concealment cover is hingedly coupled to the rear surface of the first housing.

11. The electronic device of claim 8 , wherein the rear surface comprises at least four hinge attachment points to which the concealment cover is hingedly coupled.

12. The electronic device of claim 1 , wherein the concealment cover is spring-biased.

13. The electronic device of claim 1 , wherein the concealment cover is biased in two directions such that the concealment cover is biased to a closed position and an open position in dependence upon an angle formed with respect to the rear surface of the first housing.

14. The electronic device of claim 13 , wherein a spring biases the concealment cover to the closed position if the angle formed with respect to the rear surface is less than half of a maximum angle formed with respect to the rear surface.

15. The electronic device of claim 13 , wherein a spring biases the concealment cover to the open position if the angle formed with respect to the rear surface is greater than half of a maximum angle formed with respect to the rear surface.

16. The electronic device of claim 1 , wherein the first housing has a coupling edge having a first length, and the second housing has a coupling edge having a second length that is substantially equal to the first length.

17. A keyboard for an electronic device having a coupling edge, two outer, peripheral sides that are substantially perpendicular to the coupling edge, and a concealment cover coupled to a rear surface of the electronic device, the keyboard comprising:

a housing comprising:

a front;

a back opposite to the front;

a keyboard coupling edge rotatably couplable to the coupling edge of the electronic device;

two outer, peripheral sides that are substantially perpendicular to the coupling edge of the keyboard; and

a plurality of keys housed on the front; and

a coupler configured to couple the housing to the electronic device such that the keyboard has a first configuration in which a rear of the housing faces the rear surface of the electronic device, the plurality of keys face the concealment cover, and each respective outer, peripheral side of the housing and the electronic device are co-terminal with one another.

18. The keyboard of claim 17 wherein the coupling edge of the housing has a length that is substantially equal to a length of the electronic device.

19. A display for an electronic device having a rotatable keyboard having a coupling edge and two outer, peripheral sides substantially perpendicular to the coupling edge, the display comprising:

a housing comprising:

a front surface;

a rear surface defining a receiving portion configured to receive the rotatable keyboard;

a coupling edge rotatably couplable to the edge of the keyboard; and

two outer, peripheral sides substantially perpendicular to the coupling edge;

each respective side of the housing and the rotatable keyboard being co-terminal with one another when the rotatable keyboard is received in the receiving portion;

a display screen housed on the front surface; and

a concealment cover coupled to the rear surface of the housing, wherein the concealment cover is positioned exteriorly to the keyboard when the keyboard is received in the receiving portion.

20. The display of claim 19 , wherein the coupling edge of the display has a length that is substantially equal to a length of the coupling edge of the keyboard.