iPhone 4.0 beta 1 is a One Way Ticket
Be warned that if you try and do the iPhone 4.0 beta 1 update I did a couple days ago, you may find your iPhone cannot be downgraded to 3.1.3 again. This is because the new beta includes a baseband update, which makes downgrading not possible difficult.
Meanwhile, I decided to take the opportunity to do a fresh install (i.e. not restore from my backup) and install a small subset of apps. I still find that MobileRSS Pro and Colloquy still crash on this version, but I am finding the battery life a bit better and it’s generally pretty stable. I even discovered the ability to turn off Simple Passcode! Actually, it was there before, but for whatever reason, it did not work properly. Now it does.
In any case, unless you can live with the possibility that you can’t reliably undo the iPhone 4.0 beta 1 upgrade, I would not recommend upgrading. I’d wait for the final release this summer.
Update: I was able to get the iPhone back to it’s previous 3.1.3 glory by following this tutorial from funkyspacemonkey.com on how to downgrade. The process was not too difficult to follow, but the restore process took a while–long enough that I had to pull out the SIM card and put it in a different phone so I could leave with a phone!
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