I had a question (from Erland) on this post about viewing PhotoZoom images like this on the iPhone with Seadragon.
The Seadragon Use Your Own Images page says
PhotoZoom:However that option doesn't appear (at least on my iPhone...).
Enter a PhotoZoom username. The user's content will appear in the main listing, allowing you to view their albums.
Until the PhotoZoom option is available, you can fairly easily create a 'shortcut' to one or more Deep Zoom images or collections using the RSS Feed option.
For example, from this PhotoZoom page you can
View Sourceand extract this tag
<param name="initParams" value="collectionUrl=http%3a%2f%2fphotozoom.mslivelabs.com%2fDZ%2f3%2fz8b0c8100950d45379c794efbc559f800%2f633654978975379998%2fcollection.xml" />and this url http://photozoom.mslivelabs.com/ DZ/3/z8b0c8100950d45379c794efbc559f800/ 633654978975379998 /collection.xml which can be embedded in a custom RSS document (instructions) then viewed on the iPhone!
That short URL is a lot easier to type than those GUIDs on the PhotoZoom website; of course I've just uploaded that one as an example - you'll need to find a host to upload yours to... and here is how the image looks:
Incidentally, Seadragon Settings (in the iPhone settings area) shows a PhotoZoom option - so I'm not sure why it's missing from the application itself?