Q: My son and I share an iTunes account. I would like to separate his iPod and iPhone to his own account and e-mail while maintaining the existing account and e-mail as mine for my iPad and iPod touch. I’m not sure how to do that without losing all our existing music, movies, etc. Your help would be most appreciated. – Scott A: It’s definitely possible to do this, and there are a few key points to keep in mind when considering how to best…