Anyhow he is posing the question,do prepared Podcasts spell the end of traditional lectures? He examines the case of Dr Ashraf at Bradford who abandoned lectures in favour of podcasts supported by email questions to him which he answers on his blog. This sounds progressive to me but really very limited in scope and sounds as though it is embedded in the "traditional transmission" paradigm rather than a more "constructavist" paradigm. The technology offers great advantges to the students but probably needs more than just email support if there are no face to face occassions.
Experience of a fully on-line (no attendance) undergraduate degree at Anglia Ruskin shows that students can thrive in a setting of fully online education if they are supported by well moderated forums and social spaces where peer to peer support is a key element. Ideally such approaches are endorsed at Institutional level.
Further relevant information and reading can be found at http://www.e-pedagogy.uk.net/