Thanks for the link Erdin, though the lmgtfy link really wasn't necessary ;p
I was referring to having already tried various google search terms for completed low-profile projects and libraries, rather than available research/theory. The Ardu forum search was offline.
Most of the available projects out there seem to rely on USB or are very bulky. I'm hoping for one built into thin spandex gloves, for example.
Edit, there's one interesting project funded two years ago: http://www.kickstarter.com/projects/jrowberg/keyglove-wearable-input-device - Seems to rely on electrical contact than hall sensors (which can't be worn under another glove)
Indeed, the programming won't be too hard, I'll manage it fine. Lots of testing and debugging. 
Looks like it's time to cook up a new library.
Seems I'll need an ardu mega too, for the 8 analog inputs.