We return to the Garmin Nuvi 2598LMTH to try Garmin's companion application for it, BaseCamp. Aravindh Baskaran is back to help Tim Keirnan try to create a customized commute route in to the office and upload the route to the GPS unit. This is a very informal usability test and Tim wanted Aravindh around because the first time Tim tried to do this, he was not successful. Aravindh has used Base Camp to create car club routes on back roads with the Windows version of BaseCamp, so he is acting as informal usability test moderator. The initial use usability problems Tim encountered were nothing compared to the design failure he found transferring the route to the Garmin GPS unit and using it. If you would like to follow along, you can download a Windows or Macintosh version of BaseCamp at Garmin's website: www.garmin.com Listener Costan Boiangiu's excellent email about the UX of GPS devices kicks off this episode, and the informal usability test critique of BaseCamp starts about 15 minutes in.