Your analogy is only valid in a world where an ice cream company could pivot into making cars without anyone blinking (except for the occasional blog post about how free ice cream is evil because the company behind it might decide to start making cars instead).
Are you claiming that Pair Networks could pivot into being a mobile app for couples? Or that Pair could pivot into being an ISP? Because they both seem equally unlikely.
Yes, they both seem unlikely. But I never expected an MMORPG or a mash-up of foursquare and mafia wars to turn into photo sharing websites... or for a group of people who want to put art galleries onto the web to end up building retail stores.
Maybe I'm being overly cynical, but at this point I'm not convinced that the words "internet startup", "unlikely", and "pivot" belong in the same sentence.
