Will Windows Mobile Be The Only Mobile OS? @ The TechZone
 

Many of world's biggest cell phone makers are slowly but surely migrating their way to Windows Mobile, at least as an option. They may not take the Windows Mobile route exclusively, but they realize that so many people are far too familiar with the Windows environment to want to move elsewhere. Perhaps the only major player to not make the jump is Research in Motion, makers of the ubiquitous BlackBerry.