If you've ever dealt with Aravato Services in Melbourne, FL then you'll be glad you bought the replacement warranty. SonyEricsson & Nokia use them for service and they recently kept my P800 for 7 weeks, then said they couldn't get the part and sent me back a damaged P800 which looked like they used a crowbar to open.

I gave up waiting for Nokia to fulfull my Nov order and bought it at CompUSA with the 1-yr replacement. Also, you don't need your paperwork if the 770 breaks as they can type in your phone number to show your warranty at any time.