Microsoft and Adobe have been duking it out on the desktop to become the definitive platform for rich media content, and now it looks like that fight is going mobile. We'll file this one under the rumor category, but BoyGeniusReport (BGR) says it has "pretty much confirmed" that Research in Motion is planning on integrating full Flash and Microsoft Silverlight support into the Blackberry browser.

You might be wondering how today's Blackberry devices can pull off the power needed for full Flash (not Flash Lite) and Silverlight support, and the answer is, they won't. BGR says we won't see either one until next summer when RIM will release more powerful handsets along with a major overhaul of the software.

The next summer release gives the competition plenty of time to catch up. As it stands, just a few Nokia devices boast Flash support, and Flash Lite at that, along with the HTC Hero. As for Silverlight, we don't know of any smartphone that supports the platform, but come next summer, we can't imagine Blackberry will be the only one.