===> The Bitmessage integration hasn't been done yet, perhaps we can discuss you doing that one if you wish.
The application was coded in Qt/C++ and runs on Linux, Mac, and Windows.
looks like a good match how can I help
If you get a hold of me on the IRC channel on Freenode, we can discuss how you can help. I can walk you through the moneychanger source, and point you in the right direction for getting integrated into the app.
The channel on freenode is #OpenTransactions , my handle is "Yamamushi" and sometimes "Yamamushi-laptop" when I'm mobile.