Itching to make the most of your Nook HD reader? You're in luck: Both, the Nook HD and the Nook HD+ are
now officially supported by the CyanogenMod team. The
compiled firmware isn't available yet at the time of writing, but meanwhile, feel free to take a look at the freshly uploaded sources:
https://github.com/CyanogenMod/andro...bn_hummingbird
https://github.com/CyanogenMod/andro...ice_bn_ovation
Remember: Custom flashing and rooting your Android device is not for the faint of heart. Remember to read, read, read before you make the attempt.
[related:
How can I root my Nook HD+ via microSD card?, via
Android Police]