I just saw a really cool WPF twitter client that I think is developed by the Herding Code podcast guys HerdingCode called Witty. (or at least, I see a lot of those guys usi
Create a folder where you want to keep the code, and right click on it. Choose SVN Checkout... and type http://wittytwitter.googlecode.com/svn/trunk into the URL of repository field.
You can also run
svn checkout http://wittytwitter.googlecode.com/svn/trunk
from the command line in the folder you want to keep it (svn.exe has to be in your path, of course).