I was just about to post the link to that site. Basically, in Episode I, we got a longer podrace sequence (subsequently losing a shot of Watto that is still available in the deleted scenes), an extra eye-candy scene on Coruscant (subsequently losing a shot of Palpatine's apartment building which is NOT available on the DVD at all), and some background extras replaced with more exotic looking female Twi'leks (I'm Johnboy, and I approve this edit).

In Episode II, a few background speeders were removed from the chase sequence (I guess so we wouldn't forget to focus on the characters; you know, because the audience is essentially a dumb animal with the attention span of... hey, I found a nickel!) and Anakin's breakdown in the garage is extended (MORE HAYDEN! YAY!).

In Episode III, one of the wipes is changed to a normal cut and... that's it. No, I'm serious, that's all they changed. Why they even bothered is beyond me.