Dallas, TX February 7, 2006 - According to new research from The Diffusion Group, as demand for advanced mobile devices accelerates, the battle between mobile OS vendors will intensify with market-leader Symbian gradually losing share to both Microsoft's Mobile Windows and Linux.

TDG's latest report, Advanced Mobile Operating Systems: Analysis & Forecasts, finds that at year-end 2005 Symbian enjoyed a market share of 51%, followed by Linux (23%) and Microsoft's mobile OS platforms (17%). Linux enjoyed a sizeable boost in shipments during the second half of 2005, something which very few forecasters were expecting but a trend which TDG believes will continue.

Download this TDG Press Release as a PDF  http://www.tdgresearch.com/pdfs2006/TDG_PR_020706_AdvancedMobileOS.pdf

"Symbian will maintain leading share through 2009, but 2007 will see the beginning of Symbian's decline in share as the combined market penetration of Windows, Linux, and native Java begin to erode developer and vendor support for Symbian," said Lee Allen, report author and lead mobile analyst with TDG.

At year-end 2010, Symbian's market share of advanced mobile devices will decline to approximately 22%, behind both Windows (29%) and Linux (26%).

Other key findings of the study include the following:

The main drivers of growth for advanced mobile operating systems will be the emergence of the Chinese market and the worldwide migration of users to more powerful devices as more sophisticated applications and seamless mobility are offered by operators.
Microsoft will leverage the presence of the Pocket PC and Smartphone versions of Windows Mobile, along with tight integration of Windows Mobile 5.0 with other Windows platforms, into a strong value proposition for enterprise and advanced consumer users.
The marketplace winner will be determined by factors such as integration with other platforms, how easy it is to develop applications, and the mix between looseness and tightness in the developer organization.

The main result of crossfire between Linux and Windows Mobile will be to pave the way for SavaJe and other native Java platforms.

TDG's latest research report, Advanced Mobile Operating Systems: Analysis & Forecasts (http://www.tdgresearch.com/product.asp?itemid=73&catid=33) , offers an extensive examination of the various drivers for advanced mobile device adoption; a detailed discussion of the key components of the various advanced mobile operating systems; an analysis of the forces at work behind pending market share shifts among mobile OS vendors; and global forecasts for mobile OS through 2010.

About The Diffusion Group ( TDG ) -

The Diffusion Group is a strategic research and consulting firm focused on the new media and digital home markets. Using a unique blend of consumer insights, executive-level consultants, and hands-on technical experts, we produce more than just research - we create Intelligence in Action™.

TDG is committed to providing market research and strategic consulting services based on conservative, real-world analysis and forecasts grounded in consumer research.

For more information about The Diffusion Group, visit our website at www.thediffusiongroup.com.

Comment: Rafe over at AAS jumped on this one and with good reason... he notes...  TDG are also claiming current market share as Symbian (51%), Microsoft (17%), and Linux (24%). We know Symbian shipped roughly 33 million phones last year, but if the market shares number really are what TDG claims we would like to know where the 15 million Linux smartphones or the 10 million Windows Mobile smartphones are hiding. Bill Gates recently said Microsoft powered smartphones sales amounted to roughly 3.5 million. Linux smartphone have not yet made any significant impact with (and this is being generous with the definition) around 1 million shipped last year. Have a look at the Canalys figures for Q3 2005 to confirm this.

The answer to this TDG contradiction - is that they are simply wrong and did very bad research or they have used a dodgy definition of advanced mobile devices.  See more at AAS