If you are short on time, the key point is that WebKit is being used as the HTML renderer, which is the same code base as Apple's Safari. So in theory _anything_ that flies in Safari should fly in Apollo. If you are really pressed for time, be sure to jump to the 32:00 mark to see a cool application that includes Google Maps and dragging and dropping from an address book.
View the video here:
Read Mike's full blog post here.
Apollo details from Adobe here.