This actually happened 5 minutes before I switched to 2.1, but it may just be a phone problem, I don't know. Like I said, I was running 1.5 at the time... I got a phone call, talked on the phone for a minute, and after I was done, the call wouldn't end. Clicking the end/power button didn't work, clicking end call didn't work, the other person had hung up the phone, the call still went on... The touch screen WAS responsive, I clicked end call and saw the button be clicked...the call just wouldn't end. Eventually, after 3-4 minutes, it ended. Any explanation for that, or has that ever happened to anyone?