to completely punctuate the situation:
The recent upsurge in VDR work is because totallymaxed and the guys at CHT required it. Burgiman busted his butt to finish the VDR integration, and only recently has his work become available to the source tree.
There is no shift away from MythTV as such, if for no other reason than the US market requires MythTV, we have no DVB, and thus no way to use VDR.
With that said, Daniel has been hard at work patching MythTV to bring it up to at least 0.21+patches... he also tests MythTV trunk on a regular basis to see if it is a viable candidate for integration as well...
Meanwhile, I am hard at work doing the research work needed to provide a majority of MythTV's UI on Orbiter itself instead of displaying on MythTV's UI. I could definitely use some help here, especially in the area of abstracting MythTV's data logic so that data grids can be built more effectively.
...And I should add that Burgiman is part of the CHT team and operationally looks after much of our German Centersonic product. Burgiman is also a long time vdr developer and is well known in the vdr community.
I agree with Thom... there in no shift 'away' from MythTV at all. For the US and other non-DVB regions it is the only and best option for TV integration. For Europe/Australia and other regions where DVB is the standard then here at CHT/Centersonic we think vdr is the best choice. But both Myth and vdr have much too offer and it is really down to individual community members to decide which is better suited to their needs.
All the best