Today, we received an interesting tip from iDB reader Burge. He informed us that Apple is still signing the iOS 4.1 firmware. He told us that he tested it on his newer model iPhone 3GS and his son's iPod Touch 2nd generation.
This is very interesting for 2 reasons. First, why would Apple sign a firmware that came out in September? Also, why out of all the iOS updates, 4.1 is the only one in the past still being signed?