Looks like the last detail was important after all, so Cisco did sue. Here's the formal complain, and here's Cisco's clarification: we're not after money we're after open communication with trademark infringement in hindsight.
Basically Cisco got no sign from Apple since just before Apple's iPhone announcement. My take is that the issues will be solved amicably as they are all big boys. However, I am not really sure that Apple's way of doing business in such a matter is an example of best practices. Also, for what is worth, Apple apparently owns already the iPhone trademark in Canada, UK and Australia.