The Omni frameworks are described as "Open Source"

http://www.omnigroup.com/developer/

But the licence file I found in the source when I downloaded it says:

"You may not charge a fee for the Software"

However the open source definition:

http://www.opensource.org/docs/definition.php

says:

"The license shall not restrict any party from selling or giving away the software".

Am I missing something here? Are these frameworks not really open source?