Further development of BeOS is still in the works... here is some websites that have info and such:
OpenBeOSYellowTabBeUnitedNews and such:
BeOS JournalTotallyBeBeGroovyDownloads and such:
BeBitsAnyways those sites will lead you to other sites... the BeOS community is alive and well and software is still being updated and/or produced to this very day :-D