Here is a video showing a developer Alexey Roslyakov has successfully ported the Android ICS to the Nokia N9 which runs on the Meego platform. This ICS porting to Nokia N9 is designed in the dual boot mode. So, all you have to do is to select the OS while booting up the device.
As it is obvious, it will have some issues for sure while running Android ICS on Nokia N9 but something is better than nothing.