For quite a while, Android users on many carriers in a handful of countries have had access to direct carrier billing for apps. Google is rolling out the option today to all content available through Google Play including music, movies, and books to certain carriers in the United States and Japan. While direct carrier billing is available to AT&T, Sprint, and T-Mobile (everyone but Verizon who operates its own Android store), Google’s announcement seems to indicate the expanded service will launch first on T-Mobile in the United States with Sprint coming soon. It will also roll out to Softbank, DoCoMo, and KDDI customers in Japan. You can check out a full list of countries and carriers that support direct billing here.