2 JULY 2011
... Then you should register with GroupMe. It's made for events like Comic Con.
What does it do? It assigns you and your friends a shared phone number - for free - that allows easy group texting and conference calling. No more will you need to ask someone to call someone, wonder if you forgot to include someone in a group text, check back with a friend to find out if the reservation got made or hear about a photo everyone saw but you. Every text sent to your GroupMe number will go to all of you. Every phone call will connect all of you. Every photo will go to all of you. It is extremely efficient.
And it's free. Go here to register or download the app.