Im developoing an app for the iPhone where users can chat using their facebook account info.
in this case: the facebook username & profile image. my question is How can I share the users profile picture in the chat box so that people can see each others avatars? 

the pictures must be online somewhere? how to get to that url?

I should do somthing like this when the send button is tapped:

get the username, get the msg, get the the avatar url. 
send the info to the chat server. 

[alt text http://img98.imageshack.us/img98/5103/screenshotrci.png](http://img98.imageshack.us/img98/5103/screenshotrci.png)