One of the biggest barriers that prevents many mobile phone users from buying apps for their devices is the lack of payment options. Blackberry is the worst with the only payment option being PayPal. I hope they get enough from PayPal to make up for the sales missed.
Google has announced that it is adding new payment options to the Android Market for users. A coming update will now offer support for multiple billing systems. The biggest feature of the update is that it will allow users to buy applications and charge them to their monthly service bill.
That is a huge feature to be able to charge apps to a monthly service bill and will make it easy for everyone to purchase apps for Android devices. The addition of direct billing by T-Mobile users can also forgo the Google Checkout signup process.