Apparently, Bestiary 2 is finally in stock at Amazon. Glorious review posted, let's help bump some 4E books out of Amazon top 10 in RPGs :)
Excellent news. Time to order it, along the Gamemastery Guide (I prefer ordering from Amazon rather than Paizo, since I live in Chile and the former gets here much faster, though some things I just have to get from the Paizo store, as they are not available on Amazon).