Installing iOS 5 was going well until it came time to restore the backup. Enter the password to unlock your backup. Aaaarrrggghh! I tried the usual “clear” passwords that I use, every time I got an incorrect notice. In desperation I turned to 1Passport, although I was pretty sure I hadn’t told it about the iTunes backup security. It turns out I had, and it was a reasonably secure 1Password-generated string. Just goes to show…..