IT Consultant and Entrepreneur with decades of experience across a wide variety of disciplines and skill sets with interest as my main guide.
I run DesktopAnyhwere.com and the community, among other things. Primarily we provide Ubuntu AMIs that run on EC2. The public facing ones are Free from us and to run within the limits of the Amazon Web Services Free Tier. A virtual desktop is a fair description.
Here is a link to check out the Free Cloud Desktop in Ubuntu 12.04 Precise Pangolin: