Google Maps Navigation, a free navigation GPS device for Android devices is now available in 11 more countries. Besides for the U.S. it is available in Austria, Belgium, Canada, Denmark, France, Germany, Italy, the Netherlands, Portugal, Spain, and Switzerland.
The requirements are that you are running Android OS 1.6 and have an internet plan for your device.
You can learn more about it over at google.com/mobile/navigation/.
Tom from Google Maps team posted a forum thread about it over at the Google Mobile Help forums. Tom said:
We welcome your feedback! In anticipation of questions that may come, let me reiterate that I'm unable to discuss when or if Navigation will be enabled for other countries; that said, rest assured - the Navigation team is working hard to make this feature available for as many locales as possible. Let us know what you think!