I updated to iTunes 10.5 to prepare for my iPhone 4S, and synced my iPhone 3G (yup) to create a recent backup for tomorrow. I noticed that iCal events created on my phone recently were not going on to my computer, and I realized that in iTunes, under the info tab, "Sync iCal Calendars" was unchecked, as was Contacts, so I checked both and resynced. iTunes copied EVERYTHING from my phone to my computer, without recognizing events as the same, so now I have duplicate of every event I created back through June (both on computer and phone), and each contact on my computer is also duplicated (just on computer). FYI I am not using iCloud or MobileMe or anything, just good old manual syncing! Does anyone know a way around this, besides manually deletion? Honestly, I have less than 24 hours left of this phone and of course it continues to misbehave til the end!! Thanks!