From [MacCentral](http://maccentral.macworld.com/:)

Thunderstone Media has released an upgrade to iPodderX, the company’s utility for downloading and managing “podcasts,” which are radio shows that can be downloaded in MP3 format and transferred to an iPod or other MP3 player. Version 2.2.7 adds the ability to convert files into AAC format and allows users to bookmark files so that they can resume listening where they previously stopped…

This is what I just sent Adam Curry an email about… podcasts should by default be broadcast in the bookmarkable form. Sure, MP3 is more ubiquitous, but these are **pod** casts, and the iPod plays these files very well, thank you very much 🙂