Re:The Omni Group has sold 5,000 copies of OmniGraffle for i...
by bbatsell on Friday May 07, 2010 @01:12AM
(#1326776)
They claim an unregistered trademark on it. ® signifies a registered trademark. ™ signifies an unregistered trademark. They can still sue to defend it as an unregistered trademark, but they'll have a harder case to prove (especially since their attempted registration was denied), and they wouldn't be entitled to the punitive damages that they could get if it was registered.
http://www.apple.com/pr/library/2010/05/03ipad.html