So, as it turns out, NVIDIA's hyped up announcement which was anticipated to be relating to its upcoming GTX 400 (Fermi) series graphics card line-up has come and gone, but only ended up being an announcement letting us know when the official announcement of the cards would take place.
NVIDIA plans for the unveiling to be at PAX 2010 which runs from March 26th through 28th. With that said, the cards likely won't reach us in retail form until mid to late April; possibly longer.
In wanting to do a bit more digging for info on exactly what will take place come PAX 2010, our VGA man Shane Baxtor has pushed to find out directly from the horse's mouth over at his Blog site. He was able to ascertain from the feedback that during PAX 2010 NVIDIA will launch their next-gen DX11 desktop graphics cards. But we're yet to hear of what date/time exactly that will be.