In reply to Devin.

I suggested, and Carrie used, grunt-wp-i18n and grunt-cssjanus, and Brady's excellent article is one I pointed Carrie and Nir to several times.

I also suggested to Brady, and he implemented, a .pot to .po task within grunt-wp-i18n. There's a grunt-potomo package than can automate creating the .mo as well.

WSM have also setup a GlotPress install, so users can contribute back to the 35+ themes they've got.