I checked then out today for real. The 3D was running around 15 to 20hz. Fast enough to be mostly smooth and responsive. I also tried out Tetris and Space Invaders. Yea, I know they are simple games but still there's something cool about playing them on a cell phone.
I'm still not entirely sure the whole subscription thing works. That's how most of the commerical games are run. $1 to $3 a month. When you first try to play the game you have to enter your PIN# to get access. That makes it expensive to try out lots of different games but then I guess it's no more expensive then renting lots of PS1 or PS2 games to check them out.