Annotation view similar to iPad Maps application
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In the maps application on the iPad, the annotation view's right callout accessory view looks like a detail disclosure button in the sense that it's blue with a white border, but instead of the right arrow, it has a lower-case 'i', similar to the info buttons. Assuming that this isn't custom, how do I create one?

Also, once that button is clicked, the annotation view is resized with an animation to include a table view underneath the title, and the view is moved to the left using an animation. Is this also a custom call, or is there a built-in API call for this behavior? 