you won't be charged. almost anything you download will give you that message because the apps don't know if you have unlimited data plan. but since you do, you won't be charged. they have those messages for other users that may have no data plan or a very limited one. the only things you would be charged for are "paid" apps (wich will clearly tell you how much they cost) or any app that requires a subscription of some sort (vcast, vzn navigator, etc) and these will also CLEARLY state that a specific monthly fee or subscrition will apply. it's pretty tough do mistakenly download stuff that costs $ and not realize it. if your mostly downloading free apps, then you don't need to worry about it.
