Try www.webattack.com (if this fails try their new address which is www.snapfiles.com) and navigate to their Pocket PC pages or try http://www.freewareppc.com/. I don't really know exactly what they have, I am not a games person but they do have games sections. Hope this helps.
they have some great games there, just make sure that they dont need a shell or another non-free program to use them. (most dont but there are some that do)