Freddy is crawling!!!  He started yesterday and hasn't really stopped.  We are totally unprepared.  :-)  It is pretty exciting seeing him put it all together, though.  First it was rocking on the hands and knees, then for a long time he would just stick his booty in the air like a downward-facing dog (yoga position), and then he started moving his hands and legs!  Now it's all working together, at least for short periods before he gets frustrated.