iOS 4.1.1 Release Seems Imminent. Backup SHSH Files Now !
iOS 4.1.1 is looming near! The update is set to fix a daylight savings bug in iOS’ alarm clock app that causes alarms to sound an hour early. The update is also set to patch hacker comex’ untethering hack which is used by Geohot’s Limera1n jailbreaking tool for iOS 4.1.
You are advised to save your SHSH blobs so that you can downgrade iOS to a previous firmware version. Cydia does this automatically but it’s best to use TinyUmbrella. Better to be safe than sorry!