Netflix Prize: Progress Prize

Team Belkor/Korbell from AT&T Research won the $50,000 Progress Prize (see links to the press coverage). Congratulations!
According to the rules, they were required to describe their solution - this is a very interesting paper.

I've joined John Tomfohr in team basho and we are currently in 4th place with the score 8.25%. The leaders have the score 8.50%.