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The two tiny antennas shown here illustrate the careful engineering that went into the Surface. The two antennas are designed so holding the device doesn't block the signal. In addition, two RF windows improve reception.
In the design studio
Surface designers built more than 300 prototypes from start to finish, starting with a crude model made from a book, cardboard, and Scotch tape.
The keyboard design template here was an integral part of the design process. Hundreds of test subjects laid their hands on similar templates to help researchers gather data that resulted in the final Touch Cover keyboard layout.