Adam Curry's got a new “Strategy 'cast” out, and it triggered an idea. Why not build podcasting sites so that the comments to podcasts are podcasts? Buncha interesting software widgets would have to get built, and there's some etiquette to figure out. But some neat things could happen. Podcasting could cross-pollinate and cross-promote a lot better, and it could make for more interesting shows.
Listen to it as a stream (starts playing immediately, doesn't stay on your machine when it's done)