Wow, finally some comparisons are starting to show up. I still can't wait for more tests and benchmarks. Not long from now I'm sure some of our own members will own both devices and can do first hand comparisons using our favorite graphics intensive games especially those with pixel shaders. Here's the iLounge link with the videos: http://www.ilounge.com/index.php/news/comments/ipod-touch-3g-speed-comparison-videos-online/
So what if the 2G is there. What matters is the 3GS comparison (which you own btw). It's surprising that the Real Racing opening video launched faster in the new touch. Goes to show the two processors, although same spec'd, were tweaked differently by Apple. Anyway, I'm sure the speed difference is not that night and day, but its there. Also, it must be the angle, but from start to finish with the different positions, the 3GS screen looks slightly more washed-out.