Tripstir is a new app that helps you share travel plans and tips with your friends. Think of it as a way to avoid those exasperating moments when you come back from a trip and you realize that one of your friends was in the same place at the same time — but you're only finding out when it's too late. Basically, you use Tripstir by entering information about upcoming trips.…
Read MoreSource: TechCrunch