Great to see M$ going the cool way in designing their interface. I like it more than the blade system.
I saw a vid that said installing GTAIV would be 6.8GB.
Isnt that about the size of the game (a bit shy of the DVD size)? If thats the case isnt this "installing" thing just copying the game to the HD and playing it from there? [Im not dissing them or anything since its faster than playing from the DVD drive (maybe quiter too), but just speculating]. Its obviously asking for the DVD to be inserted to make sure you have the game not just rent it, install it and then give it back.