Turns out you can do some interesting customizations with Google Maps. If I ever bring back Bottled Lightning, this extension would be a great vehicle for walk lists.
Found on Slashdot: CalTech Hacks MIT Prefrosh Weekend [link removed because the site disappeared]. There’s an open invitation for MIT hackers to have at CalTech’s (upcoming) Prefrosh Weekend. For once in my life, I’m rooting for Tetazoo.