I agree. Kilimanjaro's enthusiasm is just what you need as an entrepreneur :)

In some sense, my "openness" might be too much reality. He may find the business model he needs (and I was serious when I said there were 10's of copycats already - good idea to check those out for ideas)

And, of course, Mailinator is surely just a "weekend project" for me too. It just has an advantage of a good few years worth of weekends.