Hi all,
I should probably come here to edugeek more often...
Imgtfy, there is no intention to retrospectively go back and change the license. And you are right, my use of the word "always" in my blog post is misleading; it should say "already". I corrected this on that blog post. Thus I apologize for the confusion. To make it clear: Cameyo was free for an unlimited number of machines up to 2.0, and up to 49 machines afterwards (since late 2012).
To make it up to you guys, feel free to PM me (plus email to cameyo at cameyo.com, as email notifications don't always work for me). Mention that you were a 2.0 (or less) user and got confused by this blog article; I will email you a written permission to use Cameyo 2.6 for an unlimited number of machines.
Cameyoco