I was wondering how to differentiate between the user tapping submit or skip in the inline post-to-stream FBDialog. Anyone know what to test for?

I am using the latest iOS Facebook Connect in a iOS 4.2 environment.

/**
 * Called when a UIServer Dialog successfully return.
 */
- (void)dialogDidComplete:(FBDialog *)dialog {
    if user tapped submit and post was successful
        alert user of successful post

    if user tapped "skip" (cancel equivalent)
        do not display alert
}