The number one app on my wishlist is a real time online chess game. While the app in the app catalog allows you to play correspondence chess, it does not compare (in my book) to playing against someone in real time. I even thought about switching phones to get that functionality.

And then I came across the website, not to be confused with the app. If you go to through your pre browser, you can log on (after registering) and play against many other people online. It keeps your level/ranking based on your record and the ranking/level of those you've played. Best of all, I never had a problem of finding people to play against. Would be great if the app allowed this functionality, but it is still great that you can play through the Pre's browser. Enjoy.