For 386, Go barely works. For amd64, current Go doesn't currently work on 9front (but works on Charles' kernel), probably due to a kernel bug.
Either way, Go on Plan 9 is held together with duck tape, especially networking bits. Btw, Go broke on 9front about a year ago (or was it more than that?). Only one single person noticed, and that was months later after the fact. That serves as a useful test to gauge interest (and quality) in Go on Plan 9. -- Aram Hăvărneanu