Come Friday, when the 4S comes out, I'm going to upgrade my phone and give my wife my current 4. She's never before had an iphone. I've bought a ton of apps, so I'd ideally like to use the same account for both phones. That way, I can load apps easily onto my wife's phone without haveing to repurchase. However, I need to keep contacts, calendars, and the like separate, but I don't know that this is easy to do. If it makes any difference, we're currently set up as different users on my macbook. In researching, I now see that itunes allows for separate groups in itunes in regards to contacts and calendars. However, I just plugged my phone into the computer and itunes gave a message that I didn't need to choose groups because everything is syncing to the cloud (I updated Lion and my iOS today). [The message reads as follows: Your contacts, calendars, and bookmarks are being synced with iCloud over the air, so it isnt necessary to sync these items using iTunes. iCloud sync can be configured using your device's Mail, Contacts & Calendars settings.] So now that I've finally figured out how to handle group, is the cloud going to make it impossible to have more than one user per account? I'm very wary because I already got burned trying to set up my wife on email on the ipad. When I tried to sync her Yahoo email contacts onto the ipad, Apple kindly merged her Yahoo contacts into my contact list and it took me forever to sort out the resulting mess. Thanks for any help you can offer.