Sony Xperia Play at working on a dual-keyboard?

This item comes directly from the USPTO (United States Patent and Trademark Office) has published a patent filed by Sony in 2010 on a smartphone with a mechanism to double slider , that maybe one day we'll see on a device the Xperia series.

 

The hypothetical smartphone in question will then be equipped with a QWERTY keyboard and is the gamepad typical of the Xperia Play, all in addition to a touchscreen of course. When the first mechanism is actuated, then you can also turn on the second (the first slider will be at the keyboard), but when they both were shifted, then it will be possible to include the first to have only the gamepad, or vice versa.

It is not known if this concept will become a reality that we touch in our stores or when they arrive in the meantime, what do you think? Would you buy a similar device?