NO games and apps are coipy protected adn can only be installed on a phone thats paired to the computer and itunes store account that bought them unless the App is a jailbreak one then it can only be installed on a jailbreak phone using the installer for that jailbreak.
Movies also are copy protected and wont install unless on the same itunes store account thatit was bought on!!.. Jailbreaking will alos stop you adding legit video or apps Also once its jailbroken you can only add jailbroken or copy protection free media or apps as its altered the boot code and NOT recognised as a valid ipod on iTunes so wont load (from itunes on the computer) NEW apps and NEW protected items (apps, video or DRM music). YOU CAN load itunes Plus music and stuff you import from CD or MP3 or AAC files etc... or try and use apps store or itunes on the device itself!!
