Could not find the source to quote ( Sam pilgrim's testing in whistler for the new "dreamliner" Diamondback Prototype ), but managed to find a earlier copy in mikelevy's 76 pages of "random photos" ( www.pinkbike.com/photo/5476175 ) (sorry mikelevy)

I don't happen to have had the pleasure of owning/ or /riding a dreamliner, and they haven't started to turn up second hand yet (though they look as if they will be a good buy, as diamondback produce bikes at a reasonable RRP, and the simple design looks as if it will hold up well/be easy and cheap to service).

Here is what diamondback have to say about it;
www.diamondback.com/4xslopestyle-frameset-mountain-framesets-full-suspension

and as many have already said it does look as if it is a Commencal Meta 4x, which is still popular;
dirt.mpora.com/news/dirt-100-2011-commencal-meta-4x.html
and PB seems to have show them in a good light;
www.pinkbike.com/news/Roc-DAzur-2012-Diamondback.html
(as well as bikerumor; )
www.bikerumor.com/2010/11/20/interbike-2010-prototype-diamondback-dream-liner-slopestyle-bike

 looks nice. how do they ride?

 so.... no,
I wish I knew how they rode, but I can only speculate.