The Unofficial Apple Weblog has a roundup of iTunes podcasting reactions this morning.
They also have some information about the iPod update that went with iTunes 4.9 (not that I noticed this – I need to run software update I guess). The two new podcasting features that they mention are chapters in AAC files and inclusion of the podcast description on the iPod. It will be interesting to see if the chapters idea catches on. As far as I can tell, it would require me to transcode my podcasts into AAC and then listen to them to add chapter markers. I don’t normally listen to these things more than once, so unless the people producing it do this I won’t have much use for chapters!