It's now a time honoured tradition for us to participate in the very special VerySpatial Live! Podcasts held each year at the ESRI UC. (Ok.. it's the second time we've particpated).
You can find this year's at : http://veryspatial.com/?p=2312
This year the main topic is mobile GIS ... of course :) :)
We're about 1/2 way in :)