A new, free alpha add-on from Mozilla makes it possible to test apps - and the Firefox OS itself - from within the web browser. All you need is Firefox, and a bit of time to work with the Simulator.
Firefoxos RSS
According to a tweet from Spanish company Telefónica, the ZTE Open is destined for market tomorrow. Coming in at a low price of €69, the phone will be the first to run Mozilla's operating system.