In reading more from the Japanese website that shows the d'NaNo head/tail light system, I found that google's web page translation works quite well.
This guy "Mazuki" and the a poster by the name of "masterpiece" are very talented and have stong understanding of hobby electronics. (see
http://blogs.yahoo.co.jp/mizukihisao/folder/472703.html
They've developed some VERY interesting mods and finsihed products specifically for the d'NaNo. This charger modification is rather sophisticated and he apparently sells them on the Japanese market. There is also the high quality light kit, some analysis of the ICS unit and 2.4 GHz trans/rec that is very intersting reading.
Hopefully, we can welcome them to our board -- their input would invaluable. I can also teach them how to make a decent track
Update: I figured out how to register with Yahoo Japan (not easy for this non-facebooking old man - you need a Japaneses postal code and to "befriend" the the poster). I have sent him a message about his d'Nano lights and our board - but I noticed that the English text broke up in between words in Yahoo.co.jp account, so I'm not sure how much success I will have..