I just got a note from the guys at http://www.snapnames.com/. A quick visit to their site shows a neat idea–you reserve a domain and they check it all the time, grabbing the domain the minute it expires. What’s remarkable is how they got the little things right. The banana is right there (twice) on the page. The design communicates quite obviously that this isn’t a scam (actually, it might be a scam, I haven’t tried it, but I doubt it’s anything less than it appears to be.)
They’ve got an API and even though the business isn’t inherently viral, it has many of the markings of a smart net business. Just FYI.