March 6, 2008 - Sometime in the second half of 2008, Microsoft plans to release Silverlight 1.0 for Mobile, a slimmed down, mobile-specific version of its desktop multimedia plug-in. Complete details are not yet available, though we do know that Silverlight for Mobile will be available for Windows Mobile devices and that it will be, at least initially, compatible with Silverlight version 1.0, not the recently-announced Silverlight v.2.0.

Microsoft describes Silverlight as a "cross-browser, cross-platform, and cross-device plug-in" which supports video and audio playback within a web browser, much like Adobe's Flash.  In fact, Microsoft designed Silverlight to take Flash head on, though it is unclear how well developers and users will take to the new alternative.