Been having lots of fun playing with different versions of ruby using the ruby_switcher shell trickery. This is works great but it broke my slightly tweaked version of mategem (a shortcut for pulling up the gem source in text mate using bash’s auto-complete trick). I am working on a more complete workaround but in the mean time, I needed to replace the gem environment gemdir command with the hardcoded path to my main ruby gems directory. This works for the nominal case again but the longer term solution is to have the auto complete work across multiple gem directories (again based on the gem environment as established by ruby switcher. I’ll post more when I figure it out (or remember to).