I know we have been *****ing (complaining) about the lack of a D-Pad - traditionally a directional key functionality which looks like a DPad.

But what if it has one of those new fangled Optical mouse which looks like a D-Pad but is not (see this video for what I mean). And Nokia uses them in a few models already I believe.

I don't knoe if this has been already considered as a method of input and hardware scrolling function ?