There's the problem.
Why are people happy with their "lives" ghettoized to a device? I absolutely, positively hate that. I'm a lot closer to having a working sync solution now with my Treo and Missing Sync, but things shouldn't be so hard. I shouldn't have to periodically do some voodoo over my Treo to get it to sync again (I am convinced that the problem is with Windows Mobile, not Missing Sync; they've done an admirable job reacting to a really flaky system). I shouldn't have to keep telling WM5 that the change Entourage made really was correct and I don't want it to undo it. I shouldn't have to re-enter things like speed dials and settings and call logs if I replace my Treo.
It should all just work. If my Treo gets run over by a train, I'll lose anything I put in it since the last sync, but otherwise I should just need to pick up a replacement Treo at the nearest kiosk, sync everything back over, and be on my way as though nothing happened.
That's how things should be. There's no reason why our cell phones should be so locked up, why people should feel like if that device fails on them they've lost all memory of events and contacts. Move out of the ghetto! Hopefully Apple's phone fixes this. From what I've seen, I have some very high hopes that it does!