The open-source development company Trolltech has switched sides in the ongoing war between the various mobile Linux consortia.

There are several groups of companies trying to push open-source technology further into the handset market. The two largest alliances — although Google's recently announced Open Handset Alliance may prove a worthy adversary to both — are the Linux Phone Standards (LiPS) Forum and the Linux Mobile (LiMo) Foundation. While LiPS is trying to come up with a shared set of standards for mobile Linux, LiMo is aiming for a shared implementation of code with more scope for member companies to add their own proprietary layers.

Trolltech, whose Qtopia platform is already the foundation for many consumer-level handsets in Asia, was a founder member of the LiPS Forum. However, it quietly left that group in the second half of last year. At the Consumer Electronics Show in Las Vegas on Monday, Trolltech announced that it has now joined the rival LiMo Foundation.

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