Niall Kennedy has a post on his blog, which I found via the Blog Herald, that mentions Movable Type has made it to its fifth birthday.
Five years ago today Benjamin Trott and Mena Grabowski Trott released Movable Type 1.0. About 100 copies of the blogging software was downloaded within the first hour of availability, and over 500 people had requested notification of each release.
Six Apart is no doubt very happy, and hopefully we will see some great updates coming from them soon.