I have it running on my Nexus S right now. Even in this early stage (it´s not even alpha I think) it is quite impressive. It lags like crazy and there are bunch of placeholders and non-working stuff all over the place but as I said, it´s not even alpha. Phone-calls, SMS and Wifi work though.

It uses the Android kernel with it´s drivers but instead of the Java-stuff on top it uses Gecko. The Web-content has direct control of the hardware through APIs that Mozilla and W3C develop and standardize. Pretty cool and it´s all open technologies!

I am as excited for B2G as I was for the N9 actually and would love to have it running on it. I am, however, not able to contribute, other than donate some $$ like you et3rnal. People already got Android running on Maemo devices so getting this running on them should´t be a problem. Anyone up for it?