I was lucky enough to attend VALA2012 and also present a couple of papers. The first was about some Open Source software that we created at the Victorian Parliamentary Library in order to track reference requests. Its not quite finished, but as soon as its wrangled into a coherent jumble of code, I’ll be putting it up on http://github.com/pov.
I’m quite happy with the system and it got some good comments from people at VALA. Here are the slides I presented that show a bit of the user interface. Programmed using the Play! Framwork.