While adoption of GPLv3 is coming along slowly but surely, it's important not to inflate current adoption rates. In a recent blog post, Noah Clements from the Association for Competitive Technology took a vendor to task for doing just that:
Basically, what they did was to count all the projects licensed under version 2 “or later” as having converted to GPLv3. Furthermore they used unexplained estimates of “conversion rates” and “impact” to arrive at the “or later” figure in the first place. No matter how you slice it, that is dishonest.
Black Duck Software applies exacting standards to the harvesting, categorization, and analysis of licenses. Our enterprise customers and the open source community respect Black Duck Software because of the honesty and integrity that goes into everything we do.