so im planning on getting a new iphone 4g or HD. w.e you want to call it. but i dont want to get the 2 gig plan for 25 bucks. so im getting an iphone 3gs today with the 30 unlimited. and have 30 days to return it and exchange it for the newer iphone when it comes out. when do you guys think the new iphone is going to come out? any rumors? also i never had an iphone before so this is going to be my very first time.