Chris Pirillo has discovered podcasting for photos. According to Pirillo.exe, you can do it quickly and easily with a PSP, the PSPMM, and a properly encoded Flickr RSS URL:

1. Locate a Flickr user, tag, group, etc.
2. Copy the Flickr RSS 2.0 URL to the clipboard (example)
3. In the PSPMM, flip to the Feeds icon
4. Press the Add a Feed button
5. Paste the Flickr RSS 2.0 URL into the field
   IMPORTANT: ensure _enc is at the end of the pasted URL
6. Press the OK button
7. Press the Transfer button when your PSP is connected