From what I've read, beta 4 seems to be good enough to run on my main device. However, I don't wan't to restore my phone. So 2 questions: 1) My phone is currently updated. Can I just OPT + Update to iOS 7? 2) When the gold master is released, do you have to clean install it (restore) or can you update from (let's say) beta 6 to the Gold Master? Thanks! I've never tried this before.