The Geeksphone Revolution, which lets you try out Firefox OS without burning your Android bridges, goes on sale on 20 February.
The Revolution comes with a 1.6GHz Intel Atom processor, a 4.7-inch screen, and either Google Android or Mozilla's browser-based mobile OS.
The Spanish company's new Firefox OS phone will include a "high-performance processor" and can run Google's Android operating system, too. The company hints it could use an Intel processor.
The Spanish carrier has a lot riding on Mozilla's mobile OS. Its director of open Web devices reveals Latin America sales data that show Firefox OS has a shot at becoming the third mobile OS.