Just ordered this new book on IT Portfolio Management - it looks very promising. One of the guys is a Meta (now Gartner) analyst. Reportedly has good clarity on the distinction between application and project portfolio management - the former IMHO being far more relevant and important to the hard questions of IT governance, despite all the ink spilled on the latter.
-ctb
P.S. Where have I been? Well, I'm up to 30 dense pages on what's become my "Data Centric Approach to ITSM" paper; look for a first public draft soon.
