Winter (2012-13) quarter's lectures are now on iTunesU.
This website was retired last quarter, but evidently iTunesU folks still need it for demo code downloads, so the demo code downloads (for this quarter only) have been posted below. Please do not repost these on other websites--they are for the individual use of those of you watching the course on iTunesU. Sorry for the delay!
Here is the code from today's section.
Note that the face detection only works for one (landscape) orientation of the device.
Here is the modified Psychologist code example that I used to illustrate finding leaks and using the static analysis tool in Xcode.
Here are the slides from the section on 4/8.
Also attached is the XCode Project for the debugging example we covered. There are several bugs in this code so it does not work (that is intentional) ... see if you can find the bugs yourself. If not, the readme.txt contains a list of bugs.