Swappable keyboard, and gamepad in a smartphone, new patent from Microsoft

Microsoft has filed a patent and this time it is quite an interesting one, we have seen all types of smartphones from a simple touch to sliding keyboard and even the flipping keyboards.
This time it is the turn of a swappable keyboard form Microsoft, you want to type turn it into a keyboard want to play games turn it into a gamepad you can get more battery life by swappping in the backup battery. Well it definitely sounds interesting and let's hope it becomes a part of our real lives soon.