App Purchases Can Be Added Directly To Sprint Bill
"Since last year, we've been working to bring the convenience of Direct Carrier Billing to more Android Market users on more carrier networks."
Direct Carrier Billing has come to Sprint allowing Android Market users to charge purchases directly to their Sprint bills. This will make it easy for customers to track purchases and pay for them all at one time along with their bill. Using only a few clicks to buy apps certainly makes purchasing easier as long as you don't get carried away!