So not only do we want to try and target specific cities, but also specific landmarks within those cities where this will be ultimately useful. We've identified two of these - airports and college campuses. We are working with Boston Logan airport to see if we can do some co-marketing with them and advertise to all the passengers arriving on flights and in the cab stand. As for colleges, there are a lot here in Boston! Its just a matter of reaching out to the right student associations and newspapers who can recommend the service to their students. Any connections here would be greatly appreciated!

I've never thought of the conference idea before, I wonder if cabs a re a primary mode of transportation there or not. I'll contact you offline for more info....