T-Mobile USA hopes to rock the wireless industry today with detailed plans to sell the iPhone and other phones on an unsubsidized basis with no-contract, unlimited data plans. The iPhone doesn't yet appear on T-Mobile's Web site, but a new Samsung Galaxy S II in White pops up as its first offering, selling for $413.99. The Galaxy S can be purchased for a $29.99 down payment and $16 per month for 24 months. The installment plan doesn't incur any interest.