My phone has been randomly crashing. Even if the battery is full, it will reboot with low battery and sometimes will even go into an endless rebooting loop until the battery finally dies and I recharge it.
Running OS 5.0.0.975, memory usually at 35-50 meg on average. It doesn't seem to matter what it's doing or what kind of app I'm running, it happens nonetheless. I'm estimating it's happening almost daily at this point, and sometimes more than once daily.
I've been experiencing this for the past few weeks.
Only apps I had installed myself were Twitter, Facebook, ZonaSnap, and Foursquare. Fresh install of the OS did nothing. I just downgraded to the first 5.0 release, hopefully that'll get rid of this. So annoying, especially when I'm out and can't charge my phone after it totally drains itself.