Had to wait till 11:35 to watch it because of the Sox game but it was worth the wait. There were a lot of implausibles in this ep (Desmond, the button, the 80s furniture, Hanso Foundation, the whole world under the hatch thing) but it all leaves you begging for more eh. So many questions!!!!
BTW, I found this link on the Hanso Foundation...interesting...
http://www.thehansofoundation.org/