thingISBN data in a single file

thingISBNs—all of them—are now available as a single ginormous XML file. This should help people get around the 1,000-calls-per-day limit for using thingISBN API, make it easier to perform local processing on thingISBN data, and—hopefully—allow crazy stuff we haven't even thought of. For more info see Tim's full post on Thingology.