I remember reading something like this years ago before the PS3 and 360 were announced/released. I remember thinking how much it would suck if my friend let me borrow his game and I couldn't play it. Thankfully they were just rumors and never came to be. The only way this is in effect is with online passes with games i.e. Battlefield 3. It just isn't logical. Renting/borrowing games would be impossible.