Mozilla revealed preliminary plans today to take the Gecko engine that drives its Firefox browser and turn it into an open-source operating system that will eventually work on phones and tablets.

Called Boot to Gecko, it is known that the source code will be released to the public "in real-time," wrote Andreas Gal, a Mozilla researcher. Gecko is the rendering engine that powers Firefox and the e-mail client Thunderbird. By contrast, while Google's Androidmobile operating system is open source, the main development work on it does not become available until after Google has green-lit its publication--sometimes not until months afterward.