So basically this is the future of gaming. You own nothing, you just rent and there is absolutely no reason to put any work into porting games or at least making them compatible with WINE so long as Onlive or its successors technically work. There is no single player because Onlive is essentially a form of always on DRM. Their servers go down, no gaming for you. At least with WINE there is the possibility of eventually playing a game offline with or without some outside server being involved.