Are there more Cocoa and Cocoa Touch videos which are worth looking at?

For those looking to go a little beyond the basics in terms of iPhone development, the videos for the Advanced iPhone Development course I taught at the Madison Area Technical College are now available on iTunes U.

I cover the iPhone OS frameworks in detail, from Core Data to OpenGL ES, and my detailed course notes (which you can view here) provide supplementary information and links to the sample applications I used for the course.

While focused on iPhone / iPad, the course may also prove useful to Mac developers, as many of the frameworks and topics translate directly to the Mac (Core Data, Core Animation, multithreading, etc.).

WWDC sessions, are incredible, and you cannot go wrong with them. I'm not sure if the 2009 sessions are still on sale at ADC, anyhow, 2010 sessions (which are terrific) should be available soon.

Cocoa Touch:
iPhone Application Development (Winter 2010), Stanford (iTunes U)
don´t forget to download the source files
Have been watching these lectures for several weeks.

If you're willing to lay down some money, the Mac Developer Network videos are fantastic: http://www.mac-developer-network.com/video/