2 questions and a suggestion

Hi,
I've got a couple of questions:

What's the lowest GPU that'll be supported by this thing?
....and will you guys support Mobile GPUs as well?

Also - and I have to point out here that I'm just an interested onlooker,
just - something I've thought of before:

Doesn't the web need it's own 3D model format? ...you know, like .3ds for
3D Studio Max, and id Software used to have .mdl for Quake...? ..Cause
surely loading models is a very common thing for 3D programmers to do? Why
don't we help them? Does anyone have any thoughts on what the format of
these files should be?



Thanks.