Update 2: ASUS has issued an official statement on the matter and determined that the Prime's GPS is functioning as intended, which for many folks means essentially non-functional.
A new update for Google Maps was released today and brings some impressive new functionality. Artem put it well (although perhaps not exactly eloquently): "it's #$%^ing amazing... Google keeps blowing minds." In a nutshell, Transit Navigation (as it's officially dubbed) brings exactly what you'd expect - it helps you navigate public transport. In their words:
Transit Navigation (Beta)
Google Maps Navigation (Beta) currently provides over 12 billion miles of GPS-guided driving and walking directions per year.
CoPilot, a popular navigation and mapping company, released Live USA Standard and Premium v9 offline navigation apps to the Android Market on Monday, June 27th. While most people immediately think and resort to using Google Maps, CoPilot apps could come in quite handy for those without data plans (such as phones disconnected from service or Wi-Fi only) or in areas of poor data reception (I felt the need for something like this just this past weekend on a trip to a remote lake).