Redmond-based Concur, the developer of expense report management and corporate travel management software, said today that it will be showing off its new corporate travel booking tool this week at a conference. Concur said it will preview its Concur Open Booking corporate travel product--which is powered by TripIt--to its users at the GBTA 2012 Convention in Boston. The firm said the tool now includes new hotel recommendation features, an API which provides suppliers with a way to provide more information on their hotels, purchase of air and rail pricing in Germany, and more.