I'm not an iOS developer, but I've always wanted something like a location-based social notification emergency app/service. Background: social tools are being

I'm not an iOS developer, but I've always wanted something like a location-based social notification emergency app/service. Background: social tools are being used by activists world wide to spread the word or share ideas. Journalists are also using these services to report news very quickly and from the location of the event. The idea is to build an emergency-type social notification tool that would notify the world when a journalist or an activist is under a threat. A usage scenario: a journalist went undercover to a hot area (like Syria). They would use the service/app to create an emergency situation (before they go) in which they specify where they're going, how long it should take, and a notifier & an action, like (If I don't tweet in 1 hour then let the world know that I'm in danger). The notifier could be anything from FS checkin, tweet, FB post, instagram photo, etc. and the action could have multiple options like tweet something, send a DM to someone, or something like that.