Mandrake 10 has it, SUSE's rolling it out in 9.1, Gentoo has had a "test" version with it since last year, and now we'll probably see almost every commercial distribution move to 2.6.x within the next month or two because of competitive pressure. This is not in line with the basic "it's ready when it's ready" dictum that is given as the reason open source software is often technically superior to proprietary competitors.