My project is to build an app similar (though with stripped down functionality) to [url removed, login to view]
I would like to be able to offer a service where my customers can text their sms location to a group of people (there may be multiple groups)
The user is a member of the group, but cannot see the details of the other members - they just hit "send" and it goes to a group that I manage centrally.
I would like to have a website where people can sign up online with their number, join a group and take a payment
Let me know what other questions you might have.