here's a fancy new mac app: 1001. flickr photos from your contacts stream across your desktop in almost-real-time, as new pics are posted. fantastic. i'd like it to do a better job with your photo history, and give you more control over how and when and how many of the pictures appear on your screen, but it's only a beta, so i'm sure that will come. meanwhile, here's an idea: integrate it with the display features built into mac os x and have photos from your contacts swap out as desktop images as they're posted. nifty.
there's nothing i like more than a well-integrated web/desktop app.
also, turns out you can add creative commons licenses to your flickr image posts. my default is attribution-noncommercial-sharealike.