I haven’t played with GarageBand much but plan to. Supposed to make podcasting a snap. And the folks at Apple think there might be some business applications for podcasting:

“Promoting your business just got easier. Create a podcast with GarageBand, post it to iTunes in minutes, and reach customers, clients, and partners in a whole new way. Chefs are sharing recipes. Maternity store owners are giving the lowdown on diaper bags. And other professionals are airing business discussions, marketing new products and services, and keeping people informed.”