It's becoming difficult to count on one hand the tech startups going after the "small" or unmanaged business travel market. 30SecondsToFly, Cinch, Hyper Travel, TripChamp and Travo are a few. Hyper, along with shopping services like Assi.st and Mezi, are bringing a new element to the travel-booking experience. They're focused on mobile texting as the means of communication between the agent and traveler. It seems . . .