If you're looking for a kickass navigation system for your iPhone, hold on. Twonav has been submitted to the App Store.
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
If you're looking for a kickass navigation system for your iPhone, hold on. Twonav has been submitted to the App Store.