Wow. That's all I can say. Inside Facebook says that TripAdvisor has bought the "Where I've Been" app for Facebook for a massive $3-million - which works out to about $1.30 for every one of the widget's 2.3 million users (and I use that term loosely). As the site notes, that's about 30 times what Slide paid for the "Favourite Peeps" app a couple of months ago.
Pete Cashmore at Mashable says that works out to about $43,000 for developer Craig Ulliot for every day that his app has been in existence. Not bad. Just a little while ago, Andrew Chen wrote a blog post in which he pondered how an app like Ulliot's might monetize its users - I guess he just got his answer.
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