I don't use many apps on my phone since I carry my iPad but If I get an iPhone it needs to be unlocked has I have Orange in France. No apps are available on Blackberry and the browser is very slow. it would be nice to use iCloud with my Mac Air and my iPad. I would be paying full retail. $450 for the 4, $550 for the 4S and $699 for the 5 ($699 is getting a bit crazy for a phone).