Debian-Ubuntu integration: improving software!
Lucas did a very good job: he successfully integrated part of Ubuntu package management with Debian's. As explained in his blog, he took all the data from Launchpad and made a SQLite database with the fetched data. Now we have a "Ubuntu" column in the Debian Developer Packages Overview pages, and also a nice "Ubuntu box" in the PTS pages (see example).
Lucas' work will surely improve the collaboration between Ubuntu and Debian maintainers, and this will give end-users improved software... enjoy FOSS advantages! :)