You might want to keep in mind that the Samplemodeling instruments:
1- use tremendous amounts of processing power.
2- to date are only solo instruments (as was the case with the Stradivarius and Cello that they produced for Garritan). Perhaps this technology is not as good for ensemble samples, i.e., violin sections, etc.
3- because of the above two items it makes it a bit difficult to create, say, a horn section of 4 individual trumpets, 3 or 4 trombones and 5 saxophones.
4- with the specific instrumentalists that Samplemodeling have sampled so far it is difficult to use them in an orchestral setting. Check out their orchestral demos - they are pretty tortured sounding.
And yes, they do sound good and work great in pop and jazz productions. Hats off to them for what they've been able to accomplish.
I wouldn't doubt that sometime in the near future VSL will adopt some aspects of this technology. I would expect that there will be some sort of update of the Vienna Instruments sample player that accomodates this. Also, because VSL has become such an advanced software company we should expect them to figure out what is needed to make ensembles work with this technology and make the sample player not require huge amounts of computer resources.