Berkeley economics professor Brad DeLong summarises and assesses:
What part of the difference between "please put an asterisk saying that Web 2.0 is a service mark of CMP and ORA" and "[Your] actions constitute unfair trade practices, unfair competition, and are a fragrant violation of CMP's trademark rights. CMP hereby demands that you immediately cease and desist from utilizing Web 2.0 as the title of your event..." does Tim O'Reilly not understand?
No. I don't think Tom Raftery owes [Tim] O'Reilly any form of apology.