Following up on the ttfautohint as a service, here is an updated service with the 0.8 binary. Just download, un-zip, and double-click on the ttfautohint workflow. OS X will prompt you to open or install, choose install, and choose to replace the existing workflow. This service only works in OS X Lion 10.7 and newer.

Download ttfautohint-0.8-as-Service