If Ries and Trout ever publish a new edition of Positioning they should make this a case study. Moving email addresses is very painful for a lot of people, so n

If Ries and Trout ever publish a new edition of Positioning they should make this a case study. Moving email addresses is very painful for a lot of people, so no matter how much buzz Gmail gets in the tech community, there's still the built-in inertia to switching clients.