Ubuntu is based on the Linux operating system and its development and use is governed by an open ethic that emphasises the sharing of core computer code.

BBC: China to create home-grown operating system

Google's mobile software is based on the Linux operating system and was created in conjunction with a group of more than 30 technology companies called the Open Handset Alliance.

NPR: Google's Android Software Debuts On New Phone

Waiting in the wings are any number of open-source smartphones based on the nifty Linux operating system.

ECONOMIST: The competition this time will be a lot stiffer

The segment offers operating systems, network services and workgroup computing software solutions based on the Linux open source operating system.

FORBES: Magazine Article

Ubuntu is the most popular operating system to be based on the Linux kernel - the code that lets software and hardware work together.

BBC: Ubuntu operating system comes to Android smartphones

Sony (nyse: SNE - news - people ) and Matsushita, both of Japan, said the operating system will be based on open-source Linux and will be available in March.

FORBES: Sony, Matsushita Team Up On Linux

PalmSource also hopes to expand its business worldwide by using CMS technology to develop a new version of its Palm operating system that will run on Linux-based phone sets.

FORBES: PalmSource Embraces Linux Through China Buy