I've always used my @gmail as my apple ID. When iOS 5 came out, I (thinking I had to based on prompts) created a new apple ID with my @me.com address. Now, I've purchased apps with the new ID. Of course, when I sync with my MBP it tells me this [new] ID is not associated with this comp, etc. I had to authorize my MBP for the new ID. If I just revert back to my former ID, will I still be able to get updates for the apps I bought with the new ID? If I just stay with the current [new] ID, I won't be able to access the content purchased with the former ID right? (as you can't authorize 2 IDs on one iPad). Messy. As I understand it, you can't combine IDs.