[joseman]

Are there Windows/Mac clients for Iris?

[karalabe]

Iris was written in Go (with a few platform speficit C snippets) and is available for Linux, OSX, Windows and 32bit/64bit/arm :)

You can download pre-built binaries from http://iris.karalabe.com/downloads (or of course you can compile from source https://github.com/project-iris/iris)