Backpack & Reddit - examples of "frictionless" user interfaces(codinghorror.com)
codinghorror.com
Backpack & Reddit - examples of "frictionless" user interfaces
http://www.codinghorror.com/blog/archives/000866.html
http://www.codinghorror.com/blog/archives/000866.html
The farthest I've seen this taken is in web apps which let you fully use them, but only complete some of the actions you've performed when you finally sign up. This is the model that I will likely use on my next app.