TUAW approves of the iPod nano Lanyard, and so do I. I’ve broken it out as I’ve done some shopping and around-the-neighborhood walking, and it’s been great. I’ve got a big neck—21″ collar—and this thing has no problem for me.
It’s pretty awesome … I’m not sure I’d run with it on [at least not outside my shirt; maybe between a T-shirt and an undershirt], but it’s pretty great.