Originally Posted by jsconyers
Do you have a media card in your device?
Yes, and I think I know where you're going. After I made this post, I did some more searching and found that the media card was the culprit.
I removed it during the boot process and my BB came up cleanly without any reboots. I put the card back in, reformatted it, and everything's been working flawlessly since then.
I don't know if that's the same problem that Barron is running into, but I was surprised to see that the media card issue isn't better known/documented.
Thanks for your help!