I love my 600 and am drooling about the 650 for use with ATT hopefully this Wed. My question is as follows. I use Missing sync. Do I need to do the painful piecemeal reinstall, or do I just tell the sync program that this is my new handheld and watch it update. My gut says this should work, but that and $1.35 will get you a Latte at the local Starbucks. Any insights? Thanks.