[mattyb]

I use RVM for both development and production, and I've written scripts that use it to set up both my development and production machines. It's nice to be able to reformat my workstation (for new Ubuntu releases, or new hardware) and get back to business quickly. As far as production, I'm not really sure RVM is that much of a win, assuming you're compiling the latest Ruby anyway and have only one app on the server. I use it since I've yet to learn proper packaging and therefore the only (easy) way to uninstall a Ruby is via RVM (I know about checkinstall, but IME it's buggy as hell).