Flash CS5 introduces a whole bunch of new features in order to keep up to date with the current necessities in the development of RIAs and other software for Mobile hardware such as the iPhone.
The following video will show some of Flash CS5 gaming capabilities and, starting at 3min50sec, an introduction to Flash CS5 physics.
For more information on Flash CS5 you may consult Adobe Technologies page on Flash CS5
Yea I saw that too. Then I started looking for tutorials. Looks like adobe left out the physics panel but left in the Physics API. You can still use the native Physics using Actionscript.
I found these tutorials
http://heftybyte.com/?p=36
http://magicalhobo.wordpress.com/2010/06/23/physics-engine-in-10-1/
Awesome comment. Thanks for the references