Blackberry bold 9780 swap for iphone 3g/3gs/4/4s ?

i have a blackberry bold 9780 in black in perfect condition it was a replacement phone from insureance as i lost my old one had 2 months use since and still in perfect cpndition comes with box and charger i would like to swap for a working iphone 3g/3gs/4/4s has to be on vodaphone or open to any network and needs to be in good condition and full working order feel free to text or ring any time thanks Jordan :)