Ijust found out that they also ahve a patent granted to them yesterday..apr/18th!!

U.S. Patent 7031954 – "Enterprise Search"
Document retrieval system with access control

patft1.uspto.gov/netacgi/nph-P ...

and heres another one..
U.S. Patent 7031961 – "Social Bookmarking"
patft1.uspto.gov/netacgi/nph-P ...

I watched the video yesterday, when it was on Google Video
video.google.com/videoplay?doc ... (error page now)

Thanks to Google Desktop, I have a part of the cache :

img220.imageshack.us/img220/62 ...