Nevermind, my own question got answered by looking up the Garmin Forerunner 910XT: http://sites.garmin.com/forerunner910xt/
Run, swim, AND bike. Excellent.
Run, swim, AND bike. Excellent.
But I can definitely vouch for the excellent battery life, resilience to water, and usefulness on a bike laden with sensors.
The only gripe I have is that you can have multiple sets of bike sensors but not anything else. That and their approach to OS X software basically being "well, be grateful you're only 2 years behind the PC and that we acknowledge you at all."
Sadly, it might be outside of my price range. It does look like it's the perfect thing for tracking my workouts, but damn is that one hell of an investment.