Think of it as Craigslist — but on steroids that give it super-speed and spidey-senses, and without the alarming hey-why-is-hair-growing-there side effects.
Just like Craigslist, users can trade goods or services; but Anttenna (no, that’s not a typo) also leverages phone tech like geotagging to create local micro-marketplaces based on the location of users, and then connects them through social-network tool Twitter — which the app is built on — for more immediate buyer-seller communication than Craigslist’s increasingly snail-paced-seeming email system.
It doesn’t yet have the massive throng of participants that makes Craigslist such a powerhouse, and its sophistication may actually hurt it, as one of the appeals of Craigslist is its simplicity. But who knows; a year or two from now, we may all be hearing things like “so hey, did you ant your old MacBook already?”