There have been some interesting developments surrounding Mozilla's Firefox OS platform and smartphones built on it. Alcatel had already delivered its popular OneTouch Fire phone based on the mobile operating system in countries ranging from Germany to Hungary and Poland. Now, the OneTouch Fire is going on sale at low prices in Italy via Telecom Italia. Meanwhile, Geeksphone has been discussing a high-end Firefox OS phone called Revolution that will purportedly run both Mozilla's platform and Android (though users will need to choose one platform).
You can check out the Geeksphone Revolution homepage here. It's light on details, but Geeksphone was among the first makers of Firefox OS phones and has made Android phones as well. CNET has reported on the company's plans to deliver phones with high-end architecture giving users the choice to run Android or Firefox OS.