Wondering if anyone has found an app or calendar solution that allows friends and associates to plug in destinations and dates, and ping them if there's a match. I remember one called Jetwerx from about 10 years ago that tried to do this, but I don't think it caught on.
I'm almost always traveling for work, and many of my friends do the same (all different companies, freelancers, bands, etc.), and so many times we find out after the fact that we were in the same city, etc.
Thanks in advance!