Q: I have a second-generation iPod touch. I was wondering if I could transfer apps from my iPod to my friend’s iPod without going to his house and using his computer. Is there any way he could come to my place get the apps? I do have a computer so that’s not a problem.
A: Applications purchased from the iTunes Store are copy-protected and can only be used on iPods that are authorized for the iTunes Store account that was used to purchase them. Apps and other iTunes protected content must either be purchased on the device directly using the iTunes Store user ID and password or transferred to the device from a computer that is authorized for the iTunes Store account that was used to purchase the apps.
While technically you can authorize your friend’s iPod for your iTunes Store account it should be noted that this is against the iTunes Store Terms of Service which clearly state that purchased apps and other content are solely for your own personal use.