I'm at Drupalcon Boston this week. Dries Buytaert, who founded the open-source project, gave the keynote. Among the things he discussed was trying to define what comes next, both for Drupal and the Web. If Web 2.0 was about user management and relationships, Web 3.0 will be Web 2.0 plus "infinite interoperability," he said.

For Drupal, that means becoming an RDF repository, exporter and importer, so that data becomes decentralized and can be accessed by people and computers in whatever format they want, on request, whether XHTML, XML or even JSON, he said.

"We want to allow other people to reuse our data. ... Do cool stuff with large amounts of data. It's just fun, in my view."

Buytaert said he'd like to begin implementing this in Drupal 7, which might ship in about a year.