I'm planning to get an iphone 3g, but i do have a few concerns about the apps. 1)What is meant by third party apps? are they unauthorized apps or the apps from app store? 2)I hear people talking about free cracked apps. What is meant by a cracked app? Suppose I buy an app from the appstore, can I send the file to my friend and let him use it on his iphone? Or does it have to cracked before others can use it? 3)I know that by jailbreaking my iphone, i get to use third paty apps. But if I want to use cracked apps, do I also need to jailbreak my iphone? Thanks a lot...Not even sure if these questions are appropriate...Anyways, just curious.