Here is a really exciting browser plug-in that makes Flickr and other image sites a lot more fun to view. It could potentially be used for presentations. Pulling images from the hard drive is not officially supported yet, but there is a way to work around this in FireFox. (Thanks to Arno Bosse for introducing me to this plug-in!)
From the PicLens site:
Think beyond the browser
PicLens instantly transforms your browser into a full-screen, 3D experience for viewing images on the web. Photos will come to life via a cinematic presentation that goes well beyond the confines of the traditional browser window. With PicLens, browsing and viewing images on the web will never be the same again.
NEW! Immerse yourself in 3D Style.
Our new interactive “3D Wall” lets you effortlessly drag, click, and zoom your way around a wall of pictures for an extraordinary, full-screen viewing experience. Why mundanely flip through online photo galleries or squint at thumbnails from Google Image Search when you can fly through an immersive, full-screen experience instead? Learn more.