I'm unsure if I understand the premise of gamesharing on the PS4 but I've noticed you can activate a PS4 as your primary system allowing everyone else on the PS4 to play your titles. (On PS4s you haven't activated as your primary I believe you need to be online in order to verify to licenses in order to play your games.) Anyone know if this is correct? Seems as though we'd just have to activate our accounts on the other person's PS4 as the primary one so they could play our games and vice versa. The only downsides are that you need to be online to play your own games and two that other PSN account on your PS4 can't play your games due to the PS4 not being activated as your primary system.