I purchased a 2520 this morning from ATT and it has locked up on me twice. I'm unable to wake it up and have to hold down the power button for over 20 seconds to get it to shut off. I was on the phone with Nokia support and their solution was to go through this routine. Totally unacceptable. I'm hoping to be able to get another one but the ATT stores in my area seem to be sold out. At this point I'm just going to return it if they can't find another one locally. Hopefully this is not a widespread issue. I'm glad I held on to the Dell 8" I purchased last week as that appears to be dependable and has had no issues.