If you missed us at the CeBIT or GDC, here is our presentation I showed on Saturday. It gives a general overview about Multiplatform Game and Application Development and some pointers to our solution to it: The Delta Engine.
DeltaEngineMultiplatformDevelopmentPresentation2011-03.ppt (5.62 mb)
You can also find this presentation and lots of others from the MSDN TechNet Room at Microsoft's CeBIT website.