OnLock also causes my phone to crash. I activate it, hit the power button, press the power button a few seconds later and am greeted by a white screen every time. I haven't came across any other issues I could get to repeat themself - seems pretty stable IMO.
I can't believe I never used O2 before - this thing is fantastic! I love the crossbow sounds as well. The flashlight comes in handy...definitely beats having to start the camera app when I drop my stylus haha.
Not to get OT, but someone mentioned a few pages ago he wanted to see the Black47 theme
http://www.spbsoftwarehouse.com/unithemes/black47/?en in the ROM. I couldn't help but check this one out and thought it was great. Real nice dialer and today theme once you change the colors of the top/bottom bars, if you're into the dark colored themes.[/url]