pinger

I've been meaning for a while to post an invitation to everyone to work together on the mobile phone pinging system that has been discussed on the site as an alternative to expensive centralized bus tracking systems going in to some cities.

This seems like it would be really easy and straightforward to build, especially the way roygbiv approaches it in that thread linked to above.

If anyone is interested in figuring this out and getting it built, send an email to diy@diycity.org and we'll get going on it.