Songbird is now available in print as well as in all e-book formats! It' was so exciting to know that I have a book out there now, and people can actually order it themselves!
You can get the paperback from Amazon.com, and the Songbird e-store. Both of these locations with ship internationally.
E-book formats are available in the Kindle store, The B&N Nook Store, and Smashwords.