my blackberry 9780 i want t to swap for a iphone 3gs or iphone 4 .

allow i got a blackberry 9780 condition ok could use a new case i got box charger headphones i want a iphone 3gs unlocked or on t mobile thanx i want to trade or u can buy from me for 110 and my blackberry only on t mobile u can get unlocked for less than 10 pound also i will give my blackberry an cash for a iphone 4 or ill swap my phone for a iphone 4 damaged