Hello,a couple of Linux distributions are mentioned at http://go-oo.org/download/ with a short info about how to install it. However, Arch Linux is not among them. I expect that if someone wrote them that Arch Linux has Go-OO in its repository as well, they'd be willing to add that message there. I'd write them myself but I suppose it would be better if it was done by someone "more official" (e. g. a developer). Opinions?
Ondřej -- Cheers, Ondřej Kučera