7 AirPlay, AirPrint, AirDrop
Being in an all-Apple ecosystem has its perks. AirDrop lets you easily share files and photos between devices. AirPlay lets you share media or your entire display wirelessly. And AirPrint makes wireless printing to supported printers a breeze. Personally, I’d like to see these features make their way to Android and Windows.
Of course, every patent has its troll. According to AppleInsider, Uniloc is suing Apple over AirPlay, amongst other things.