Q. Can I have multiple popover's within a single application view?
A. Yes, you can, but keep in mind that the example here uses a single delegate for handling the dismissal of a popover. There are a number of ways to get around this, including structuring your code so that changes within a popover are immediately reflected in the application, or you can segment your application so that each popover has a different delegate.
Q. You told me to drag the toolbar to the top of the window. The developer docs say to drag it to the bottom. What gives?
A. At the time of this writing, Apple has not yet updated all the descriptions of the toolbar UI element to state that it can be used at the top and bottom of the iPad screen.