It's definitely v.impressive, and inspiring, but I don't know if I'd go with 'site of the decade'..
What it has going for it is that it's a balanced, if slightly busy layout with great use of sound.. everything is there, in full working order, with a strong sense of usability.
However.. I dunno, maybe it is somewhat definitive for the decade's flash but it's hardly innovative. There's nothing there I haven't seen before and although it's an exceptional example, that whole techie, flashy lines flying around, 'loading module', sexy female computer voice thing has been done.. many, many times before. As I said, it's a great example of it.. but I can think of other sites that would be better suited to that award.. mind you, i'm not sure I entirely agree with the whole 'decade' thing anyway, it's far too broad, especially in an area where technological advancement moves at the speed of light. Not saying that 10 yr old design holds any less grounds for being 'good' design, but it's hardly going to keep up with stuff that's being produced today.
I think for that design and aesthetic, i would have liked to have seen some 3D and video integration thrown in.. classy, not for the sake of it and inkeeping with overall feel but I think it could've really lent something to the experience.

Definitely a great site though and will be putting it in my fav-site bookmarks, just not too sure it was deservant of that particular award, although.. as i previously mentioned, I think it'd be pretty difficult to find a site that could fill the podium for a decade's worth of design.. lol