In the last days I had lots of time to play with my Wiimote and its bluetooth capabilities. Sadly there is actively supported driver in non-C (and I am not the biggest C programmer). I found this little prototype driver written in Python by Will Woods which is using pyBluez to communicate with my wiimote and have extended it quite a bit. WiiLinux is a huge resource that offers information on reverse engineering of the Wiimote protocol.
The driver is still far from finished or usable outside some demo applications, but that might still be included in the future. You can download this little goodie and have a look at it.