Just this summer, I decided to get the ankle version (original, not 'interactive'), which I wear around my socks. I also use it while jogging. The tag can be affixed to an ankle band or a wristband, so you could get a spare band.

I went with the plain one because of (a) privacy reasons (leaving personal information on yet another server); and (b) there's nothing really special about my health profile.

About "HTFU", I believe Stuart O'Grady was wearing the "inspirational" wristband a few years ago, sold by an Aussie comedian: http://store.ronniejohns.com/?show_product=HTFU