Anyone Sync using Plaxo with their iPhone? I'm afraid of when the time comes to upgrade from my Treo 750 I'll spend a couple of weeks loading, reloading, and reloading contacts. When I first got my T750, it would wipe out Plaxo and then my Exchange contacts leaving me with no contacts. It went back and forth for weeks. Sometimes contacts would be doubled and then deleted... nightmare. Luckily I backed up to a file before starting.