Iphone can define a hard press. So its possible to deliver te same solution i think... there are alot of benefits that you can have. Like different layouts, differen buttons such as a sliderpuller or volume scrollwheel on screen. And more...Good point indeed. This solution sounds so pathetic on every aspects :/
In the end, we're just trying to see if it could work like physical buttons... which already does a better job for far cheaper. This better be a fake.