Well, I've had good news and good news. Firstly, Sourceforge now reports 3,003 download for RCOSjava. Sure that's less than what JBoss does in a day but it's something I guess.
The other good news was that Danielly Karine da Silva Cruz got a 9 for "Implementação do Sistema de Arquivo do RCOS". This was an implementation of the MSDOS file sytem using RCOSjava.