First of all, I have this phone and actually like it (though coming from Windows Mobile it would be hard not to). However, it was bashed pretty hard by Engadget (http://www.engadget.com/2010/10/15/samsung-t ransform-review/) and definitely a take away from the review is this:
We also noticed that 3D apps chugged tremendously, and certain games (including Angry Birds) wouldn't run at all. We ran a few tests but soon got confirmation from Sprint itself: the Transform's S3C6410 processor doesn't support hardware acceleration for OpenGL.
So don't get this phone if you expecting to be able to play Angry Birds or any similar 3D accelerated games, I guess.