Essentially, the code and UI works, but looks...unattractive.
Hopefully someone with better Industrial/Graphic design can make look like it belongs. If I have the chance, I'll post a howto on editing the graphics files.
I've started work on this plugin as my first plugin for SD.
I should have some UI examples later this week, but I'm basing everything off of the simulator comms. Since Matt said the only thing to do once you can interface with the simulator is to get the actul serial cable, the cutover should be dead simple.