FotoViewer is a Flex based application that allows you to easily create 3D photo galleries of your photos stores on Flickr or SmugMug.
Its super easy to set one up - you simply pick the style for your photo gallery, then enter in your username for Flickr or Smugmug. The system connects to those photo sites and pulls down your albums or collections. Pick the one you want and you're done.
Here's one that I made of some photos I took in Ottawa a few weeks ago:

FotoViewr - Create your 3D photo gallery

There are a number of different templates that you can use to create the gallery. The one above is the "Wall" layout - they've got 6 in total - Flow, Horizon, Carousel, Floor and Pile are the others.
Once you've created the gallery, there's embed code for you to take an embed in your blog or social networking page, or a link that you can use to email them to your friends. Check it out - its a nicely done Flex app.

Have you ever thought about what it would be like to mashup a spreadsheet and a photo organizer? What if you could specify a photo, and have the application calculate something based on attributes of the items in the photo? (For example, if Photoshop Elements knows who is in the photo, it could look up their birthdate in your address book and then calculate the average age of people in the photo.) One of my RSS feeds caught a post by Daniel Gasienica that discusses an application that does just that.

The application is being built in Flex and AIR by Hector Garcia-Molina from Stanford University. The above example isn't that great, because the application isn't targeted at consumers, but rather scientists who are collecting tons of photos and metadata, with no way to calculate items based on that metadata. If you think in those terms, the value of the application becomes much clearer.

Sounds like a neat application. I wish there were screenshots to show.

Mixbook is a Flex based application that allows you to create printed photo books, much as you can with iPhoto, with a few interesting twists. As Ryan Stewart mentions in his blog, this is an interesting twist on Web 2.0 - no ads, no subscription costs; Mixbook makes money by sending you a physical good.

Unlike iPhoto, Mixbook allows you to work collaboratively with other people in making the book, so the onus for creation isn't on one person. You can easily invite other people to your book, and then collaborate with them to create the finished product.

The finished product is available in two forms, the printed book that is shipped to you as well as an online photo book, complete with page turn animations (Sample). Users can rate and comment on the finished online book.

This application would be great as an AIR application. Adobe AIR would add the ability to drag and drop photos directly from the desktop into the application, without having to upload the photos to Mixbook's servers.