Right, group messaging for people you know. I don't see anonymous group messaging as anything other than weird political blasting, anonymous dick pics and an outlet for road rage.
You also shouldn't be on facebook when you're driving.
I think it could be a great thing.
In a stadium, for example, it should be interesting for some people.
And better that, in parties, obviously.
But what we'll receive as perk to contribute on IndieGoGo? =)
I think today one of most "popular" whatsapp feature is group message. Now imagine "localizated" group message formed automatically!
When you go to a Rock concert it will be possible to chat with everyone there, make new friends, chat privately and so on...
Actually it will be: chatroullete + whatsapp + tinder + Facebook Nearby :)
Maybe I should put this idea on IndieGoGo...
I'll wait for some feedbacks where first...them maybe I create an campaign there :)