The iPhone Dev-Team has released a new version of RedSn0w for Mac and Windows that uses the Limera1n exploit to support more devices and adds the ability to restore custom firmware ipsws.
TopXNotes modernized the User Interface including a new, taller, customizable toolbar with larger icons, a rewritten NoteOrganizer, two-finger scrolling, new icons, and several cosmetic improvements.
The iPhone Dev-Team has confirmed that RedSn0w 0.9.6b2 can jailbreak iOS 4.2 GM Seed; however, they warn it should only be attempted by advanced users.
Fotopedia Heritage, a photo based encyclopedia for the iPhone and iPad, has been updated with slideshow, wallpaper, shuffle, and retina display support.
Backtrack Live displays the user's location on a world map, and they need only touch Start Tracking Live to have their position periodically recorded and uploaded.