That red "button" is in fact a nipple and is used for controlling the mouse cursor. Kinda like a tiny joystick. It was used on laptops before touchpads were invented.
silly question...
if iPotato5 and SG4 get hw kbd from 3rd party, isn't this proof that there is a market for hw kbd?
the companies which produce them usually generate junkish stuff at even more ridicule cost then the price they sell it for, so it is more hassle to get & keep it working then it really delivers useful fonction
why not... be different?
design the hw kbd other half and integrate it nicely in the OS