I did an interview last week on the PaulDotCom podcast, the best known security podcast out there. If you want to have a listen, check it out here:
http://pauldotcom.com/2010/08/pauldotcom---security-weekly---11.html
I haven't looked at the actual download yet, but I started 45 mins in, give or take. The first guy is cool too, though, he talks about GSM and why it sucks. :)