The Google Maps API blog announced that the new GMap API version 2 is out today (beta). The GMap v2 has been out for testing, but it is now officially part of the Google Maps API website. There are many improvements including the impressive “Fewer memory leaks” bullet point. cough
Google now has removed the page limit terms to the API agreement and they are nice enough to now give you a 90 day notice if they ever introduce ads into the API. The upgrade to your code seems as easy as changing v1 to v2, but I’m sure some mashups will have “issues”.