Want to know how to write programs for the iPhone and iPod touch? Beginning this week, a Stanford computer science class on that buzzworthy topic will be available online to the general public for free.

The 10-week course, iPhone Application Programming, is a hot ticket. It begins today and videos of the classes will be posted at Stanford on iTunes U two days after each class meeting (http://itunes.stanford.edu). Copies of the slides shown in class will be available there as well.

The proliferation of third-party applications for Apple's iPhone has changed the device from a popular cell phone to a miniature computer. The Apple App Store offers more than 25,000 titles, dealing with everything from maps to business tools, games, photography, fishing and restaurant recommendations based on your location.