I made aquarc.org and it is basically an SAT question bank right now although we plan to add more features. I thought it would be cool if I ported English (math is too hard because of the MathJax thing) to the J2ME phone. It's not a game but it's pretty cool imo :)
source code: githubhey, sorry there's no web emulator yet. it's in the works!
in the meantime, you can download the .jar file and run it on your computer (or a phone?).
~nora