Well, it does appear that 10.2 will not support the same array of graphics cards 10.x was supposed to support if this webpage's footnotes are to believed:
"*nVidia: GeForce2MX, GeForce3, GeForce4 Ti, GeForce4 or GeForce4MX. ATI: any AGP Radeon card. 32MB VRAM recommended for optimum performance."
http://www.apple.com/macosx/newversion/
"*nVidia: GeForce2MX, GeForce3, GeForce4 Ti, GeForce4 or GeForce4MX. ATI: any AGP Radeon card. 32MB VRAM recommended for optimum performance."
http://www.apple.com/macosx/newversion/