Based on the patent drawing above, it depicts a slider smartphone with the area where a keyboard can usually be found being empty. That space which can be used to attach a QWERTY keyboard can also attach a variety of other modules, such as a gaming controller pad, an extra battery pack and even a secondary display. With Microsoft entering the mobile phone market with Windows Phone 7, we don’t think it’s a stretch to imagine that one day we will eventually start seeing devices like these, but for now we can only imagine.