FYI:  Buffy Hamilton had a good explanation of what she does
http://theunquietlibrarian.wordpress.com/2011/09/09/qa-nook-simple-touches-and-the-bn-managed-program/

If you haven't visited Buffy's blog (RSS feed on CASL Ning), check out this site on ScoopIt:
http://www.scoop.it/t/libraries-as-sites-of-enchantment-participatory-culture-and-learning