Since you asked for feedback I am going to give you feedback. It will be honest and not meant to be disparaging. While I'm not sure I would use it that much since I can achieve the same thing using Twitter/Facebook, one thing is certain... I will never use it if it is iOS only. Not all iOS and Android people hate each other. We hang out together and do stuff... tonight even. :) If the app is iOS only and there is no actual website (for non iOS people) to perform the same tasks as the app, then I feel even the iOS crowd may have a hard time buying in to it since it forces them to neglect part of their social circle. In real life, social networks are platform agnostic. Just my 2 cents.