I upgraded to iOS4.1 today. Everything went well until even the JB with redsn0w. MY phone reboot and everything was there except for phone.app and cydia. iTunes was trying to sync but nothing was happening. I opened up Cydia and it just returned errors. I tried to manually add cydia repo and it returned it couldn't verify it. I tried the app store, itunes, and safari nothing would connect to the internet. The wifi indicator in the status bar said I was connected to wifi and cellular data didn't allow connection either. I can still send SMS and call people via messages but thats it. I tried a restore but iTunes just hangs at preparing for restore. The iphone doesn't even change to the syncing lock screen. I tried shift restore and was going to try DFU and recovery but I'm afraid it will be stuck there. I've been searching google and otehr forums but nothing has come up. I'll give you more info if you need it but I have to leave for soccer practice in about 15 minutes, I should be back to check in later.