The docs on the Robots Python client library would have been more helpful if they'd said "all the objects you care about live in the model module", and I'm still not entirely sure where I'm supposed to be looking to find out what information gets sent in which event.
I am thinking of writing a Wave-to-LJ bridge; the pieces should be relatively easy to put together. Unfortunately, while looking at the LJ side for the first time in a few years (**), I re-discovered that its XML-RPC API doesn't permit addition of comments. So now I am not at all sure what such a bridge should look like.
A wave plugin that makes me happy: a gadget which renders LaTeX in comments. I've wanted this in email and IM for quite some time. Not that I send a *lot* of equations around, and usually to people who could just parse the LaTeX syntax. (MathML is a sick joke. Better than embedded images, but still sick.)
(**) since my Advogato-to-LJ bridge, come to think of it...