Shipping software
Custom vertical social network, with feed integration (kind of like the Facebook activity stream, but driven by RSS), communities and single-sign on across a number of other applications.
Open Social support coming soon. I should do a post on how the open source implementation of that works. For the time being, though, this is all the code you need to show a Google Gadget into your app:
<c:import url=”/ifr”>
<c:param name=”url”>http://www.labpixies.com/campaigns/todo/todo.xml</c:param>
</c:import>