I was interested in using rollApp for two reasons. First, it seems to provide a neat way to access those few Windows only applications that Linux users occasionally need access to. Although the functionality to upload an application and make it available through the rollApp infrastructure is not currently available, it is going to be a large part of the attraction of the service. Second, I wanted to be able to access my cloud based files, such as those stored on Dropbox, without having to sync my files on every device I use.