I swear it was always locked during the sync and backing up process. But right now, it's allowing me into the home screen, while it's backing up. I can view each screen. Just now I tried to open a to-do app, instantly the phone crashed and restarted, and iTunes stopped backing up. As I'm typing, it booted up and now it's doing it again, syncing and backing up without locking the phone. It's even saying it's installing an app. The app it just finished suddenly caused my home screen to swipe to the page it appeared on. Sadly, the cowbell app didn't get installed. Maybe I just need to restart my PC.