First of all:
- User mode drivers (see Vista Audio Sucks 1,640,000 results)
Using google results is not a very intelligent way of proving something. Also, how are you getting that many results?
Hmm ... So which of these core technologies can you take forward? Most of them are welcome (except User Mode Drivers); but none of them offer you a new environment you can develop anything really neat on.
There are so many more new or improved core technologies in Vista that you did not even mention. From a technical and forward looking perspective they are very exciting. If more developers really took hold of this stuff and used it I think we would see some very interesting things. I do have to agree that the average nontechnical user may not see too many differences since these new technologies are platforms for building better software.