Not sure if you all have noticed, but Netflix seems to have been steadily filling in their back catalog of Blu-ray titles over the last several weeks. Most recently, they finally added in The Sopranos Season 6, Part 1 to go along with Part 2 (which has been available for some time).
There are still a number of conspicuous absences, but their coverage of the Blu-ray catalog is pretty dang comprehensive now. Big titles still M.I.A include Troy, Dave Matthews & Tim Reynolds, Mr. & Mrs. Smith, The Aviator, Led Zeppelin: The Song Remains the Same, Bonnie & Clyde, SAW II (even though they have SAW I, III, IV), and, perhaps biggest of all, Harry Potter 1-4 (even though they have HP 5). There are also a number of missing titles from independent distributors like Anchor Bay, Eagle Rock, and Opus Arte - some of which they have in HD DVD.