Nokia N-Gage Cracked
According to Mr. Belvedere over at CD Freaks, the Nokia N-Gage has been cracked. From the article: "The games that were designed for the N-Gage will of course only work with the Nokia device but not anymore. Now that the security on the N-Gage has been cracked the games can be played on other mobile phones as well such as the Siemens SX1." The article notes that Sonic N is the only game seen in public yet, but others are sure to follow soon. It'll be interesting to see how Nokia handles this.
Actually... Xbox uses a modified executable file format, and uses calls to custom routines in their modified win2k kernel in the executables. So it's harder to run them than you'd think. Though some work is being done in this area...