re: Google Maps obsolete?
Almost by definition, a lot of aerial and space photography has to be kind of old. The idea of having the whole planet photographed to the extent that everything is current is a bit spooky.
You'll find larger cities and such will tend to be more up-to-date than out-of-the-way places, but there are always exceptions.
There was something on Drudge a bit ago on people sunbathing showing up on these shots, but it's gone now.