Apple's iPhone tech talks are incredible. The format consists of instructional presentations akin to what developers would find at the World Wide Developers Conference (WWDC). But while WWDC lasts an entire week, tech talks are limited to a single day of sessions which Apple takes on the road, presenting in hotel conference rooms around the world.
On December 1, I attended the New York City tech talk, at the Marriott Marquis in Times Square. The event attracted developers from all over the northeast of the United States (and beyond), because the number of cities Apple takes the tour to is pretty limited. Many folks traveling to New York City end up paying quite a bit for travel and lodging expenses, but that is greatly offset by another impressive aspect of the talks: they are completely free. Developers have to sign up early and then hope for acceptance, but if you're admitted, the entire thing is paid for including lunch, snacks and a wine reception at the end of the day. Very classy, Apple.