The podcast, "IBM's Three-Tiered ESB Solution Strategy," is an interview with Leif Davidsen, IBM’s Worldwide Product Marketing Manager for WebSphere Application Integration.
Some of the topics Leif discusses include (on my wiki):
- Entry points into SOA
- WebSphere ESB and WebSphere Message Broker
- WebSphere Process Server
- WebSphere DataPower
ebizQ also has a webinar with Leif: "Leverage Value of Existing IT Investments with SOA Reuse and Connectivity."
For another podcast that has more depth on DataPower, see Podcast on SOA Appliances.