I'm seeing a shift to strictly behavior based security solutions now; with the difficulties of unrecognizable zero day threats; a rundown on this paradigm shift would be nice.

Of course your previous articles on application updates and some of the attending utilities that help along that line have been covered already. Your favorite company Emisoft, who developed On-Line Armor is one of these; their anti-malware has a product that typifies what I'm hinting at.