Karger said his group isn't bothered in the least that millions of people still use Post-it notes, but thinks they might be tempted to dial back on the yellow squares if computer programs were designed better. A good program, he said, would have none of the fields and forms common to the genre, and would instead allow someone to easily type or paste in anything they wanted. This design criteria has been elevated by his study group into something of a mantra: "No interfaces."
List.It runs under Linux, Mac and Windows using the Firefox 3.x browser; its free for the download and also gives you the opportunity to participate in the ethnography evaluation of the software by submitting your notes as use tracking data.