Mac switchers from Windows, you know why this one matters. Bome MIDI Translator is one of Windows’ most essential utilities, with powerful tools for converting MIDI messages and keystrokes. I know folks (like the awesomely-talented beatboxer Kid Beyond) who sorely missed the tool after switching to the Mac. Happily, it’s on its way. The beta requires an invite, and expires in July, and some important features are missing in this build. But there’s no question this is good news for Mac users:
MIDI Translator on Mac OS X

Be sure to post bug reports and forum posts over there, but we’re curious to know how it works here, as well. (Now, Linux, Bome?)