Portable Usability Labs As User Research Tools

Pete Gordon writes "Do Portable Usability and User Research Labs make sense in the software development life-cycle? This interview (my bias--it's with me, and I have a tool in beta now) covers some of the issues and questions on KDE's news site. I don't have the right answers necessarily, just looking for others input and opinions. Also, here are other links about the subject over the past few months. Info World and Harry's comparison."