I went along to Mobile Geeks of London a few days ago and managed to get a preview copy of a slideshow application from Thomson Reuters. It takes an RSS feed of Thomson Reuters news photographs and makes it easy to browse on a phone running S60 touch.
It is nice to see developers starting to think about how they can use the touch screen on the new Nokias.
In the menu.
First page for navigating images
The tab below the image on the right-hand side brings up the picture caption. Giving context to the images. It works nicely with the touch interface.