iPhone jailbreaking reveals untapped functionality

Amidst a debate over copyright issues, iPhone hackers offer new features including recording video, adding profile pictures to the iPhone’s address book, call blocking, organizing apps, and (biggest of all) running applications in the background (rather than one-at-a-time): http://www.nytimes.com/2009/05/13/technology/13jailbreak.html?emc=eta1