I got it yesterday...haven't read it yet.
About the 40k year old footprints, someone's numbers are really off if they are modern. If they are Homo-Erectus then, 'things' (present theories) are really gonna take some revisions. This is a significent find and I can't understand why it's not getting wider coverage.
Me neither, as it sounds interesting. But you must realize that sometimes archaeologists move slowly (actually some of them move in mysterious ways, but that's another story).