ZD Net reports Microsoft is working on "Mohoro", a Windows Azure-hosted desktop virtualization service that could be available on a pay-per-use basis.
The desktop virtualization service, codenamed Mohoro, is in a very early development phase, from what I've heard from sources. I don't know the final launch target, but I wouldn't be surprised if it isn't until the second half of 2014.
The same way that Windows Intune is the cloud complement to System Center, Mohoro seems to be the cloud version of Remote Desktop/Remote App.
This is like "Remote App as a hosted service," said one of my contacts. It could be for companies who want thin clients or to run legacy apps on new PCs. Right now, companies have to have their own servers in the equation to do this, but "with Mohoro, you click a few buttons, deploy your apps, use Intune to push out configuration to all of your company's devices, and you're done," my contact added.