I have tried to enter the Sprint contest on the Survivor TV show for the past 3 weeks and I have called Sprint 3 times on this issue. The short Code 54555 is rejected with a MSG 1051 Message Failed Shortcode may have expired or shortcode texting may be blocked on your account MSG 1051. Sprint confirmed that shortcode is NOT blocked on my account and it still doesn't work. "Rebooted" iphone like Sprint Tech Support suggested, that didn't work. Finally Sprint Tech support duplicated the error and said it doesn't work with iPhone. You mean to tell me Sprint can't make short codes work on the iPhone or did I get a "goofy" Tech support person too lazy to really solve the problem?