Here's a behavior which allows you to flip a Sprite on his side (it was sitting on my harddrive, nearly finished, I just needed to test it on Chrome...) !
To make it work, you need to have a Sprite with two frames, when the first frame is flipped, the second one appears behind it.
4 consecutives screenshots to show the effet (it's more pronounced in Firefox than Chrome, I need to check the perspective).
<img src="http://dl.dropbox.com/u/1412774/C2FlipTest/demo.png" border="0">
It's also working on iOS (I just tested it on an iPad 1st gen with iOS 5.1).
In the next release, you'll have the possibility to se the perspective, axis (left/right,up/down), and back color.
I also need to make it work in Opera...
The demo : http://dl.dropbox.com/u/1412774/C2FlipTest/index.html
The .capx : http://dl.dropbox.com/u/1412774/C2FlipTest/C2FlipTest.capx
The plugin : http://dl.dropbox.com/u/1412774/C2FlipTest/pode_flippy.0.1.zip
One cool thing is that I can leverage the method to add other CSS2/CSS3 effects to objects in C2. So in the next few weeks, you are going to see some new effects ! <img src="smileys/smiley2.gif" border="0" align="middle">