Apple's Fairplay DRM, which protects all the applications you download from iTunes, has been hacked. The method for hacking this has actually been around for a while, but has been recently applied to Super Monkey Ball and distributed into the wild. To do this, you'll need a jailbroken iPhone and SSH installed (to transfer the game and to fiddle with permissions). The theory is a bit techy and complex, but the execution isn't too insane if you know your way around XCode and the command line.
The next step, of course, is to get some sort of repository for hacked apps going. iPhone developers who are still pissed about the NDA might be receptive to people paying for their app on the iTunes store, but getting TIMELY updates from another source (or direct from themselves). This way users can bypass that week-long waitlist for revisions we're currently seeing in the App Store. [iPhone hacking via haklabs via Macnn]