I seem to be falling down the slippery slope that Pliablemoose is complaining about in his Damned Apple thread. It started with a lowly iPod Nano for my wife last year. Now, I'm getting 2 iPhone 4s's tomorrow, one for me and one for the wife. So far I've only been using my Apple ID to get iTunes songs for her iPod. Now that we will have 3 devices split across 2 people, does she need her own Apple ID? If so, can we still share songs and apps? I certainly don't want to rebuy a bunch of songs under a different ID. Thanks for any tips.