The Future of magazines is the topic from a broader presentation published March 17 by Apple about the iPhone 3.0. Click here to see the magazine specific section of the presentation. Whereas in the past to get a magazine on the iPhone you have to buy each title separately, the new iPhone will offer a subscription payment option. This will mean that publishers will be able to easily give away trials and then convert to paid subscriptions. This is what I’d be doing if I were them. The iPhone 3.0 is green, effficient and cheap to access for publishers.