I share your thoughts around finding a problem 'big enough' for undivided attention... Similar, but this hit the app store about a month before: http://trailr

I share your thoughts around finding a problem 'big enough' for undivided attention... Similar, but this hit the app store about a month before: http://trailrsapp.com/ http://trailrsapp.com/ * Its revenue model is simply selling the app. Which does make me wonder what's behind this particular YC startup. As another poster says, maybe there is a bigger plan? * Disclosure: made by a friend.