This is Justin Kimbrell from Objective HTML and just wanted to touch on this thread.
I just updated Google Maps for ExpressionEngine to v3, implementing a lot more features. I just updates the documentation and example in accordance to the new version which will be officially released this week (hopefully today or tomorrow.)
I also updated the examples to eliminate any confusion. I have spent the last 6 months developing the new version, thus the minor details like updating examples were overlooked.
v3 will be a commercial add-on and v2 will no longer be supported. I am going to leave it on Github for those wanting a free solution, but I highly recommend upgrading to v3.
New documentation, examples and demo are here:
http://www.objectivehtml.com/google-maps