Spoon.net offers a cloud hosting service for desktop applications. Quite an innovative approach but in the age of virtualization things rarely surprise us anymore. It requires an installation of a .Net plugin to run on Windows, which may make it unusable at some locations, like internet cafes. Hopefully, issues like this get solved with advancing technology. It feels weird being able to run Notepad++ in the cloud! :)
Well, actually, the app gets downloaded in the background and runs in a virtual machine / sandbox on your PC. This makes me wonder what happens with apps that require registry access. Something to try out with, for example, Quicken.