I just switched from PC -> Mac. Here are the steps I took to get my iPhone on the Mac: Redownload all of my Apps in iTunes/Mac. Resubscribe all of my podcasts in iTunes/Mac. Copy iTunes music over to Mac. Import all music into iTunes/Mac. Plugged in iPhone to Mac and Sync (it gave a message about erasing content). So, after the sync, everything "just works." My app settings remained intact. I was under the impression that since it did an erase and sync all of my app settings would be gone. Does the iPhone keep the app settings separate from the applications themselves? Is it intended to maintain settings like this?