Canonical just released the latest version of Ubuntu.
I haven't tried it yet, but will when things calm down here. At the end of April and the beginning of May there are a lot of parties in the Netherlands, e.g. Queensday and Liberation Day.
The latest version of Perl, version 5.12 has been released. There are many changes and bugfixes and I would recommend you check the release notes for the whole list.
Gearman released the latest version, 0.13, of the gearman server and C libraries. It contains a various bug fixes.
I just noticed something: the Gmail buttons have changed.
The corners of the buttons are rounder now. I don't have an image of the previous buttons, only the article by Douglas Bowman about the design of the buttons.