There are Go packages for Debian and Ubuntu at least ( http://go-lang.cat-v.org/packages ) plus a binary distribution for Windows, and installing in other systems is quite trivial:
$ hg clone -u release https://go.googlecode.com/hg/ go
$ cd go/src
$ ./all.bash
Last I checked a few months ago, if you want to use a distribution's version of Go, you must install all later libraries as root - there's no place for "my local libraries".
