I don't have Facebook. Does Airtime provide alternative ways to sign up, and if not, why not?
In this case though I think they ask for too much before giving anything or even saying what it is about, firstly access to my Facebook account, then requires enhanced permissions (which are meant to be optional, however the app barfs if you don't allow them), then requires you to allow Flash to access my webcam. It's more of a UX thing, but at least tell me what I am signing up to and show me what I can get out of it by allowing access to all of this.
XMPP permissions: we are deeply integrated with facebook chat. Your friends online on Facebook can send and receive xmpp messages to you on Airtime.
Agreed that we could improve the messaging. Thanks for the feedback.