We were teased with a video of Android 4.0 running on a Nokia N9 last month, and now an unofficial public alpha release of the OS for the N9 is available over at NITDroid. The 3.9-inch handset is a good match for ICS considering its lack of capacitive front buttons and its enduring style, which inspired the slick design of the Lumia 800 and 900. Except for some of the sensors, Wi-Fi, and the accelerometer, it appears that many of the phone's core functions are available and functioning properly, including the mobile network and 3D acceleration. If you're still carrying an N9, you can grab the release right now from NITDroid, along with the typical hassle of an unofficial installation process.