Alison asked the question: "...have you ever incorporated audioblogs into your training sessions?"
Which I haven't. But one of the ways, I have used audio is to build up an online news channel for our Learning and Development department. It's hosted as part of our eLearning site. News items can be posted to individual users or groups of users based on their role, location, seniority etc. Here we put news stories on new courses being launched, new eLearning courses, information about development and very occasionally (however I'd like to do more) interview clips.
Imagine the future where all our business managers have these smart phones, with the ability to "subscribe" to an audio news channel of relevant information, sorted into categories, subjects, topics and dates etc.
Here's what the HR one might sound like.... (an example only, names taken out to protect the innocent!!)...