This page demonstrate an OAuth-like flow on the iPhone in the Flickit iTunes application.
The introductory screen, explaining the authorization flow.
The Welcome screen slides left while a "Loading..." interstitial screen appears.
The loading indicator remains while the sign in page finishes loading.
The user is prompted to sign in to Yahoo! (with no context or URL bar).
If you hit "Done" before you've authenticated, you receive an error.
The user is now prompted whether to allow Flickit to allow access.
If access is granted, the user is presented with a success notice, with a note that access can later be revoked at their account.
Once you hit "Done", the "Loading..." indicator appears again.
The browser window slides to the right, revealing the application's ready state.
Clicking the Gear icon (above) brings you to the application's settings, where you can log out.