Haven't any of these people heard of virtual machines?
I set up a Gentoo Linux image in Qemu and use that for learning Go. It doesn't matter that my laptop is running Windows, the tools I need for Go are right there in the vm. Install mercurial? All I had to do was emerge it. And since I wasn't installing it on my primary machine I didn't think twice.
With all the work I've done on embedded systems and Processing I just don't care so much about what OS or device some software will run on. I have the tools to connect the different platforms. This early release of Go seems especially suited for running network services, and I can whip up a Processing GUI for that, no problem. I do think that a ready-built vm image, either for Qemu or a VMWare appliance, would be a great thing.