Caldecott/Newberry... what's the difference?

The Caldecott Award (named for artist Randolph Caldecott) honors the most "distinguished" American picture books for children; whereas the Newbery Award (named for author John Newbery) honors the most "distinguished" contribution to literature for childen, in America as well. Both of these awards/medals are given once a year to an artist and author, and they also have Newbery and Caldecott Honor Books that are selected each year as well. The 2009 Newbery Medal went to The Graveyard Book by Neil Gaiman. The 2009 Caldecott Medal went to The House in the Night illustrated by Beth Krommes and written by Susan Marie Swanson.