The Elephant's Child: How the Elephant Got His Trunk, is a children's picture book based on the Rudyard Kipling story, adapted and illustrated by Karen Baiker and Davin Cheng. This is free at B&N courtesy of publisher Sterling.
This is a NOOK Kids Read to Me book, and can at this time only be read on a NOOKcolor device, though presumably at some point B&N will come out with an app to grow the market.
Synopsis
A retelling of Rudyard Kipling's classic tale The Elephant's Child, adapted by Karen Baiker and illustrated by Davin Cheng. The curious little Elephant asks many questions and embarks on a journey which changes the face of elephants forever!
The other NOOKcolor freebie today is
Richard Scarry's Colors, and an older freebie,
The Twelve Hidden Days of Christmas, is apparently still free.
For more free B&N books, please see the excellent
Free NOOKbooks Summary Thread on their discussion forums, which prunes and updates the list every few days to keep it current.
ETA: And now I'm at 777 posts. Klaatu Barada Niktu, everyone!