Just went to update my iphone 4 (32gb) from 4.0.1 to 4.0.2 to be greeted yet again with 'update failed, unknown error' followed by iphone in recovery mode. Now, my 3GS did this on 4.0 and 4.0.1, my 4 has done this on 4.0.1 and now 4.0.2. I dont mind, I have backups but I also have 16gb+ of audio. What is going on? is this something with my laptop or a fault with ios4 updates? Im running latest, 32 bit version of itunes on windows 7. I've tried restoring and updating twice now unsuccesfully... Anyone advise?