Here is a video comparing the kindle 3 to the nook simple touch
One thing that is wrong in the video is the part about the nook and web browsing. The nook does have a web browser.
https://www.mobileread.com/forums/sho...d.php?t=138363
On highlighting and notes, the kindle saves all notes in highlights in a myclippings text file which can be sideloaded onto a computer. The notes and highlights for the simple nook touch cannot be exported.