They’ve posted my talk at Business of Software 2010. I highly recommend watching the video first, prior to reading the slides.
BOS2010 was one of the defining moments of my professional career (notes here). I strongly, strongly advise that you come to it in 2011 if you’re interested in taking your software business to the next level: it’s choc full of very, very smart people who are running real, profitable software businesses. (I will probably be speaking again this year, but for longer and with less joking.)