So rewind a bit, to put this in context:
- Apple accuses HTC of iPhone tech theft (2 March 2010)
- Kodak prompts ITC to consider iPhone ban (18 February 2010)
- Motorola seeks ban on US BlackBerries (26 January 2010)
- Nokia sues Apple, says iPhone infringes ten patents (22 October 2009)
One test for patents' validity is whether the company is enforcing them. With Kodak, Sony, Nokia, Motorola, RIM, and others suing one another as a business-as-usual step in licensing negotiations, the value of Apple's defensive patent portfolio at the licensing negotiation table depends in part on Apple's perceived willingness to stand behind the validity of their portfolio and enforce their patents.
I'd suppose this is a signal to the marketplace not that competitors should create their own original technology, but that if they want to copy, they should license or trade.