IMDb has enhanced the experience of their iOS app to take advantage of iPhone 4's Retina display and multi-tasking capabilities, added the ability to rate movies, and included showtimes and entertainment news.
The Google AdSense app for iPhone has been updated with numerous new features including Spotlight Integration, 3D Touch quick actions, swipe gestures support, and more.
Geohot has posted a limera1n update which states that it was 6 months in the making and will be "released today to get chronicdev to do the right thing"