Yep, I think the problem for Ageia is that game development is very expensive these days (and it wasn't in the early GPU days) and thus it is hard for Ageia to get really compelling games on the market that require a PPU to play. For publishers it is all about the install base these days, especially when you're talking about potentially tens of millions of dollars to develop a game today. It's going to take an indie developer (or even a modder) to create something really compelling that is exclusive to PhysX powered systems and if that happens, the PhysX could get the boot it really needs. I believe there still are people out there that buy into a platform (i.e. Ageia's PhysX PPU) because of really compelling content that is exclusive to that platform (remember the days of GLQuake?). More recently, there are games like Gran Turismo, Metal Gear Solid, Halo, Final Fantasy, Zelda and so on that people go out and buy consoles for. I did it with Gran Turismo - I bought a PS2 to play GT3 (and then sold it later) and then bought a PSTwo to play GT4.