Sprint Gets Direct Carrier Billing Support In Android
It's currently being rolled out to all Sprint users, so not everyone will have access immediately. It's a phased roll-out, so if you don't see it right away, just hang tight; it should be there soon. When complete, Android users on the Sprint network will be able to charge their Android Market purchases to their Sprint mobile bill with only a few clicks.
It sounds as if Google intends to continue rolling this option out to variety of carriers as time rolls along, so if you're on Verizon Wireless, patience is key!