Carrier billing has increased from account for just 3.5% of sales in August, to 17.5% of sales in December. This method of buying applications so far is proving to be very popular, and will only continue to increase in popularity as the option becomes available through more wireless carriers.

During this time frame carrier billing was available only to customers of AT&T which has made these BlackBerry users more likely to purchase applications. In December 2010 the upgrade rate from the free version of Pixelated to Pixelated Plus among customers on AT&T’s network were over twice the rate of customers of Verizon, and T-Mobile (USA), and over three times the rate of customers on Sprint network. As such RIM adding more partners for carrier billing is great news for developers.