As the title said, Linux Whiteboard now supports multiple Wiimotes. But it needs more polishing and I need to cough up a new configuration file format for this, so currently this does not support loading/saving configuration yet. I will upload the new version in a short while.
It works in a seamless manner: Just turn on your Wiimotes one by one, as soon as the last one connected successfully. Calibration will go through all of the available Wiimotes.
If anyone wants a Ubuntu Hardy package, I will make one. It's not feature-complete at the moment so I will upload the new package when I finish it.
Testers for the new feature are very welcome!.