Sure it's not as catchy as "Boot to Gecko," but Mozilla's newly-christened Firefox OS has already gained favor with a number of carriers, including Deutsche Telekom, Smart, Sprint, Telecom Italia, Telefónica and Telenor -- as previously reported, Telefonica-owned Vivo is set to introduce the earliest handsets early next year in Brazil. On the manufacturing side of things, ZTE and TCL Communication Technology (Alcatel One Touch) have signed on to make phones based on the HTML5-powered mobile operating system. Firefox OS will be po