thanks! :-)

Regarding the battery lifetime, the Wiimote has a lot of technology 
crammed into it. Bluetooth in the Wiimote itself only takes a maximum 
of 2.5 mW as far as I know.

However, there's also the IR sensor, the acceleration sensors, the 
LEDs and speaker and sure enough circuits that tie all this together.

Remote Buddy currently already tries to be as energy efficient as 
possible by only enabling those hardware features it actually is 
using. The only general recommendation I can give is to buy a 
recharger and rechargable batteries. Saves money and the doesn't 
impact the only earth we have quite as much.

Regarding improved Wii Remote support: please wait for RC2.

Best regards, 
Felix