A little multisampled bird told me that GVI is expected (hoped?) to ship in the first week of September. I believe that they are in the final phase of "mastering," and will be shipping their new baby off for "production" real real real real soon (if not already)...
GVI *will* come bundled with new sounds, and new libraries *are* being developed to complement GVI by a number of top-notch developers... I've only seen mention of one such developer online ( http://www.sonivoxmi.com/Muse.asp ), but my appetite has been nicely whetted...
TASCAM isn't oblivious to Kontakt's ascendency (not to mention the recent spate of NI engine-based standalone instruments), and hopes to reassert Giga's once-great name in the eyes of those who now doubt it (or, as I do, fear it -- LOL).
The idea here is to invoke the "rising of the Phoenix" and I, for one, hope that they pull it off.
I don't work for TASCAM, but I've gotten myself "permanently aligned" with Giga by virtue of the libraries that I've already purchased. I certainly don't want it to go the way of the Dodo.
Of course, all consumers will benefit as long as competition between well-matched contenders continues to spur on new development and improvements.
Speaking of which, I cannot stress how much I hope hope hope hope hope that TASCAM pushes its iMIDI rules onto developers as a viable alternative to K2 scripting -- and, of course, provides developers with whatever tools they need to take full advantage of Giga/GVI's capabilities when compiling their libraries.
These will hopefully be interesting (in a good way) times for sample-based musics and musicians!!