I got LinuxMCE 810 going but the mythtv and the hdhomerun didn't want to play nice.
It was a bit too difficult for me to get myth 0.24 fixes installed so I've given up and moved back to mythbuntu.
I wasn't watching video through the lmce system anyway, just squeezebox, IP camera (which I can view on my android phone) and mythtv recordings.
Unfortunatly the WAF was too low so the parts are up for sale and I might revisit this later on.
Hope that explains.
The WebDTs are in pretty good nick, battery run time is about 15-30 mins though as a lot of the older ones are.