fluxbox 0.9.7 will compile under ppc, but the keyword is not in the ebuild (just x86, sparc, and hppa).
Steps to Reproduce:
That's right, but it seems to be terribly slow on startup. It needs about a minute to start on my iBook and shows some strange display errors.
Do you have the same errors?
fluxbox-0.9.8 has been placed in ~ppc.
And it's already stable.