Despite signs that mobile Linux is gaining momentum -- such as the launch of Motorola Inc.'s Linux-based Razr2 -- heated competition, confusion about goals and slow-moving consortiums may be hindering growth.

These developments are an indication of how much may be at stake. Between 2006 and 2012, cumulative Linux mobile device shipments are expected to reach 331 million, said Stuart Carlaw, an analyst with ABI Research. Such predictions are drawing interest to the segment from handset manufacturers, software developers and carriers.

The LiMo Foundation, the Linux Phone Standards Forum (LiPS) and the Open Source Development Labs' Mobile Linux Initiative are among the new groups formed over the past couple of years to try to reduce the fragmentation in the mobile Linux market and to encourage interoperability. But at least one mobile Linux vendor is critical of their progress.

"They're still trying to figure out where to hold meetings," said Jim Ready, CTO and founder of MontaVista, of the activities of some of the groups.

Progress at organizations like LiMo has been extremely slow, agreed Dan Cauchy, director of product marketing at MontaVista. "I'm concerned about what that will mean to the actual marketplace because each member company is building phones regardless," he said. Phone makers and software developers don't want to wait for the groups to decide on platforms and standards so they continue to make products that may not ultimately conform to the parameters set by the groups or interoperate, he said.

Mobile phones are already plagued with interoperability issues that make it difficult for applications to run properly on all handsets. This problem hurts users interested in applications that are incompatible with their handsets. Also affected are software developers who have to make multiple versions of the same application for different handsets.

Some operators, including Vodafone Group PLC, have said they will soon require that all of their handsets run only two or three specific operating systems as a way to ensure that applications will work across all phones. The operators don't want to introduce Linux devices into their lineup of phones if they only exacerbate the interoperability problem.

While MontaVista is active in many of the groups, it is also continuing to work closely with handset makers to meet their needs. According to Cauchy, 90 percent of mobile Linux devices--including Motorola's Razr2--are running MontaVista Linux.

The IDG News Service is a Network World affiliate.