I use these profiles: http://www.androidtablets.net/forum/nook-color-technical/5119-setcpu-settings-nookcolor.html and yes they are good to have on the NC. No temp. readings yet for the NC. The 4 kernels listed are the one only currently available. The NC is still fairly new and there are still no custom roms. You can get kernels from here: http://www.androidtablets.net/forum...m-manager-nandroid-backup-custom-kernels.html Please use the search feature here on the forum; it is your friend.