I want to open a dialog on the IPhone so a user can grant my application permission to post on a Facebook page that the user administers. Following the docs, I can grant permissions for the user's stream and I can even post on a page that he is a fan of. However, the post on the page is listed as from the username, not on behalf of the page itself, even though he is an administrator of the page.

According to the Prompting for Permissions section at: http://wiki.developers.facebook.com/index.php/Authorization_and_Authentication_for_Desktop_Applications

I should be able to create a prompt on the IPhone for granting permission to publish_stream on a Facebook page that he administers. The sample url they give for a web "popup" dialog is:

http://www.facebook.com/connect/prompt_permissions.php?api_key=YOURAPIKEY&v=1.0&next=http://www.facebook.com/connect/login_success.html?xxRESULTTOKENxx&display=popup&ext_perm=read_stream,publish_stream&enable_profile_selector=1&profile_selector_ids=1234%2C5454

This works as expected and a drop down of the pages is displayed. However, since my application is on the IPhone, I change the display=popup to display=touch. This does not seem to work and I've tried fiddling with the parameters several ways but the drop down never comes up.

Anyone find a way around this? The popup option doesn't seem to work since I get an error trying to display it.