[mahyarm]

I actually did want to make something similar, born out of a desire to digitize my local transit schedules. I tried emailing my local transit agency, but they were uninterested and I didn't realize the kind of hustle you needed to get such stuff started.

I then had an idea using SMS and windows pocket PCs to basically make something like Uber for a software taxi dispatch system. You would SMS a number and then get updates via SMS on the status of your cab. Cabs would have the pocket PCs installed with an external GPS module. I would sell it to taxi dispatch companies as a way to make more money. I was just starting university although, and felt quite overwhelmed with the idea of actually selling it to anyone.