The most recent report from Palamida indicates that open source companies are continuing to adopt GPLv3 at a rapid pace: over 2000 projects have adopted GPLv3. http://gpl3.blogspot.com/2008/03/gpl-project-watch-list-for-week-of-0328.html.
Palamida notes that: At this rate the GPL v3 is being adopted by 1000 projects every 4-5 months, and if the trend continues, the license will be used by 5000 projects by the end of the year. 5k will be a very substantial amount of projects under the GPL v3, which may influence larger projects to move over the the GPL v3 as well.
