There are 3 new Google Maps samples in Tour de Flex. Included are Streetview + map sample by Andrew Trice which shows a great way to embed an existing Flash component into their Flash/Flex application.
The Tile Detector, created by Pamela Fox and Nigel Tao, shows how to display information such as tile and pixel coordinates about the clicked tiles.
There is a 3D Map Driving Directions (photo tour) sample by Michael Jones that demos an animated car along a driving directions route using Map 3D and popups of infowindows with Panoramio photos along the way.