Exit Strategy is a really great idea, with a great name also. (I thought of the same theme myself, and visited the MTA map room at 2 Broadway to see if putting together all the info could be done without going to every station, both sides and sometimes several line platforms. Actually it can.) Also, the idea of this was written up several years ago in the New Yorker magazine where it was described, with the word "prewalking" which is a unique term for the concept, but they had no execution. I like the name Exist Strategy better. Could you put the the approach on a website though ? I'm 60, not money rich, and have decided, a simple prepaid cell phone is enough for me. I think the same is true for many "seniors" who won't keep up with each new technology. Do you show where the elevators are for "invalids" or people with baby carriages ? That's also a serious concern. But all in all, the graphic interface is super, and the idea is well-considered. Good luck with it (in $'s). H. E. Nass (PS Please contact me. Thanks.)