This one somehow slipped under my radar. Marmalade (used to be called AirPlay) is an awesome cross platform SDK that allows developers to create apps and games in Visual C++ and have them run on multiple platforms. Right now they are supporting Apple iOS, Android, Symbian, Bada, WebOS and now the BlackBerry PlayBook in beta as of a last month as far as I can tell. That is a pretty cool feature considering that RIM has not yet made the native PlayBook native C++ SDK public yet beyond a limited beta.
Marmalade claims to support all C/C++ standard libraries so you can reuse existing C++ code or repurpose Objective-C code. Most of the developers seem to be making games on the Marmalade SDK and you can see some of them in the Marmalade showcase including Need for Speed Shift and Golf Battle 3D. If you are a dev I highly recommend checking it out and reporting back what you find. Check it out at www.madewithmarmalade.com