We have an application in need of development for iphone, android, and blackberry SDK. We would essentially like a foursquare-like application that includes certain businesses and allows people to see which friends are at these businesses. It would also give people mass transportation directions (using google maps) to that business and allow the facebook user to rate the accompany businesses. More details will be given on acceptance of the job. Experience with titanium mobile development is a plus and would make much things much easier.