I'd like to see if / how many of my unit tests pass using Rubinius, but does it currently support 1.9-specific code?
Also, RVM installs RC2, not the 1.0 release. Maybe someone can give them a poke...
UPDATE: Nevermind, http://rubini.us clearly states that 1.9 compatibility will happen post-1.0. Can't wait, even if it's just to know that my code is compatible with what may be a very real option in the years to come.
AND: I should probably run "rvm update" first, to get the 1.0 release...