Okay, a bit late to the party, because I'm still waiting for a full-frame camera with HD (1080P) camera, but those specs are impressive.
Several features are usually reserved for the pro-level cameras:
1. 6fps; that's almost as fast as the D300s
2. Viewfinder with 100% coverage. Most below the flagship cameras have to settle for 94% coverage or something like that.
3. Dual memory card slots. Sure, it's SD, but still that's impressive for a smaller camera body as this.
4. Dust and weather sealing.
That looks to be an impressive little camera. Also, I noticed that full auto-focus will be available for the HD movie mode. That's sweet too.
Man, I sure hope all of these or better are added into the D800 or D700s (whatever it will be called).