Let's be clear. You can't sync the iPod with two accounts: true. But, you can share the purchased content (music, apps, etc) from two accounts on the iPod. Apple does not expect you to buy two copies of a movie. The iPod just needs to be authorized to play content from the other account. Then, drag the content from account #1 into account #2 (or use Home Sharing) and you can have it all. My wife and I do this all the time: I buy and app, copy to her computer, she syncs and it's on her iPhone (which is authorized on my account).