The Barnes and Noble Nook Color is a very versatile device. It has seen a lot of development since its release in 2010. Cyanogenmod has been a staple in Nook Color development, officially supporting the device from the beginning. The community maintained ROM essentially transformed the eReader into a fully functional 7 inch tablet.
Now, the latest unofficial Cyanogenmod 9 ICS nightly build was released, bringing the tablet back into the ICS device forefront with an update to 4.04. The update is available in two versions, one with OpenGL and one without. From the original thread:
These builds are all straight sync with CM source with no additional mods. Builds are sync’d at 3am EST for non-openGL and 3.30am EST for openGL – they will be available to download approx 15 mins after their sync times.
So what does OpenGL rendering mean? It means we have some form of hardware acceleration for the UI and apps. It is not full hw accel and it is not hw video decoding. The couple of things you’ll notice work is wallpaper scrolling in the launcher and chrome beta will mostly work to render webpages but will fc if you go into settings. Flash also somewhat works – I’ve found you definitely need to OC to get some flash videos to work, most still are not smooth.
If you’d like to get your Nook Color running this update, visit the ROM thread created by XDA Senior Member eyeballer. It contains links to the necessary files and lots of tips from users already running the ROM. You will have to wipe your device when installing, so be sure to thoroughly back it up. Good luck, and don’t forget to report your findings in the thread and thank eyeballer for his hard work compiling the nightly builds.