I use the desktop version. That way I get my own files and am not dependent on the online Toolkits. I mainly use it to display swf's but it also has a nice hotspots function where you can make hotspots on a picture for words to be dragged on to. It also has a sorting exercise. Apart from those things I don't think there is much that you can't do with Hot Potatoes, although I'm not very up to date with it. Using the desktop version was quite a steep learning curve for me but the support forum is very responsive.