Hi, well yes, with the Facebook API for example, you insanciate the Facebook object, and when I would like to let someone share a story on their profile I call
Code:
[facebook dialog:@"feed" andParams:params andDelegate:self];
I then provide all my details, link, picture etc in the params argument.
The first time, the user sees a pop up to log in, but this is all handled by the facebook API, when they're logged in they see the share panel and they just have to touch the share button.
This is the kind of twitter implementation I would like, I really don't need to use their info to log in, I don't need to tweet in the users place, they can do that by themselves.
I'm sure I've already seen that on some apps. But all I am finding at the moment is API and tutorials to handle authorization, login, tokens, sessions etc...