My previous experiences with PDC were pretty similar. It would work but only really for BBC. I tried other channels but after two black eyes from the Mrs (only joking but she wasn't happy as missing her soaps) I decided not to use it again and just pad instead.
I believe Sky use a dynamic EPG to offer similar functionality but I'm not sure how good this solution is. One thing is for sure that some functionality above and beyond what is currently available wouldn't be missed.
Another thing I would like would be remote recording so I could set a recording via my mobile. I don't know if we will ever get it but there have been several occasions it would have been useful.
With reference to recorded program streaming this is something that can be be done in a limited fashion. Simply use scart 2 and a video link and then archive to DVD.
The problem I find most often is how the V+ handles consecutive multiple recordings when padding is used. It is a bit hit a miss as to where the clashes happen and if the V+ will resolve by dropping padding etc. Better management of dropped padding in this respect is a must for me