So here is my question: Can I buy one of these iPads that can be shared between different people in my family? In some of the pictures I've seen of the lock screen, there appears to be a button that looks like a little silhouette. Is this so I can switch between user accounts? I want to be able to pick it up, login as myself, and see my email, music, pictures, etc. Then my wife can login as herself, and see her own data. Any chance?