The LiMo Foundation has released the full specifications for its next version of its Linux-based platform for mobile phones.

The foundation, which includes members Verizon Wireless, Motorola, Mozilla, Vodafone, and Samsung, was created to provide a Linux software framework that is hardware independent and can be quickly designed into handsets. The organization completed the second release, which is being called R2, and it should power handsets that are commercially available in the fourth quarter.

One of the big improvements in R2 is the integration with Bondi framework, which enables mobile operators, manufacturers, and developers to create a common target platform for mobile widgets and Web applications. Other key technology improvements include support for location-based services, enhanced multimedia playback, personal information management software, and advanced security applications like VPN. The application programming interfaces for R2 will be available for public download in early fall, LiMo said.

"By integrating support for Bondi frameworks, R2 makes a major leap towards democratizing mobile application development and unlocking true innovation from millions of Web developers around the globe for the benefit of mobile consumers everywhere," Morgan Gillis, executive director of LiMo Foundation, said in a statement.

The foundation is potentially competing with Google, which has its own Linux-based operating system with Android. But the operating systems are generally aimed at different segments of the market, as Android is mainly for smartphones and the LiMo Foundation's software is powering midtier handsets like the Motozine ZN5. Additionally, the LiMo Foundation and the Open Handset Alliance share a few members.

InformationWeek has published an in-depth report on smartphone security. Download the report here (registration required).