Is the AGPL half-empty, or half-full?

The GNU Affero GPL, released in November 2007 and approved by the OSI this month, is being viewed as both closure of a GPL loophole and as a tool to truly transfer the collaborative and community benefits of GPL to the software-as-a-service model. AGPLv3 closes a loophole that many would have preferred to see addressed by the GPLv3. However, because the ASP or SaaS loophole was left in place with GPLv3 and GPLv2, major open source users such as Google seem more than content to stay away from Affero and thereby avoid sharing code and modifications in the same way the software is delivered.