I have a cingular 8125 (HTC wizard) and play downloaded pda games like call of duty and warlords. Pretty good for wasting time with. I can't really imagine playing games on non-pda type phones. Of course they are more bulky than normal cells but I guess I'd rather have it do more stuff than look good 
Core i7 920 @ 3.8Ghz | 6GB OCZ DDR3 8-8-8-24 @ 1600mhz | eVga x58 Mobo | 2 x eVga GTX 460 SLI | Intel X25-M + 3x Seagate + WD Black = 2.75TB | X-Fi Titanium | PCP&C Silencer 750 | G15 KB | G5 Mouse | G35 Headset | Z-5500 Digital | Samsung T260HD