Technically yes, it could simply be another output option. But the product would be crippled by its old name, which implies the need to transport an EXE file to the viewer, who executes it. So from a marketing viewpoint it should be a new product with a new name, hence "Pictures to HTML5". Obviously that is a dreadful name but someone could think up a really good one. As bandwidth gets better, the old .EXE method is going to become less and less attractive compared to the immediate gratification of the web. People expect everything to work on the web. So you have a fantastic opportunity to build what will one day become the replacement product. And I suspect it would be attractive to many many people right now, even if just as an option. You asked for a demo. As I mentioned no one seems to be doing this much yet. But I did find this slideshow, which has transitions. Slideshow And this page has all the code for it to get you started! Explanation Here is a Powerpoint like one from Google, complete with code. Click on the link at the top to see the slideshow. Google slideshow