Course files for Multitouch Interaction are stored here:
mlab.taik.fi/mediacode/coursefiles/course_2011_MTI
Files will be added on a daily basis during the course.
Screenshots of the exercises (and other images) will be posted on this Flickr album.
To set up a Git repository from the command line . . .
Use the cd command to switch to your project folder, making it the current working directory.
Enter git init to create an empty repository.
Enter git add . to copy your project files into the repository.
Enter git commit -m “Initial commit.” to commit all the files.
http://developer.apple.com/library/mac/#documentation/ToolsLanguages/Conceptual/Xcode4UserGuide/SCM/SCM.html#//apple_ref/doc/uid/TP40010215-CH7-SW10
After the above you’re free to use the Source Control menu items Snapshot and Restore!