MIDlet for Amazon Web Service

REST interfaces (along with SAX) makes things really simple for MIDlet development. Here are links to a MIDlet that provides the list price, lowest new book price, and lowest used book price for an ISBN number (unique ID for a book). What would be cooler is if I can use the camera on my Treo to take a picture of the ISBN code on a book instead of entering the ISBN number manually ...

JAD - http://www.nadig.org/technology/midlets/AWS/AmazonWebServices.jad
JAR - http://www.nadig.org/technology/midlets/AWS/AmazonWebServices.jar
src - http://www.nadig.org/technology/midlets/AWS/src.zip