@fignerco built a iOS client that can consume realtime data from this application!
https://github.com/fingerco/realtimeCheckin-iOS
Realtime check-in application
###Prerequisites:
####MongoDB
http://docs.mongodb.org/manual/installation/
####Install Node Modules
npm install
####Install Bower Components
bower install
####Run Server
node server.js
####Seed Data
node seed/seed.js
will drop the database and add seed data
Runs on http://localhost:8080/