I’m a bit late on the take up here but let me throw in my two cents.
Firstly: loved the “face for radio” comment.
Secondly I’m not sure what one can offer different via a vlog as opposed to a blog. Obviously it’s more visual but if you need to demonstrate something you can always embed a video in your writen blog.

The thing is, the web is becoming more focused towards video but in my mind that’s somewhat dumbing it down.
The truth is that I would have rather read your opinions or listened to them as a podcast because ultimately (and no offence Paul) staring at you is slightly… well…. dull.

I think vlogging has potential, I’m just not sure where yet.