Some users are complain about pricing on Web sites like Twitter.
AT&T says the reason is subsidies which are steep discounts all phone companies to new phone customers who are willing to sign a service contract.
iPhone customers question upgrading
June 11, 2009 The newly unveiled 3Gs will cost between $200 and $300 when it goes on sale June 19. But current iPhone customers who are in a contract with AT&T will be charged $200 or more for an upgrade their handsets with the 3Gs software.
