Make it easy to run Visual Studio from the cloud. That way we can write code anywhere.
Allow developers to setup a virtual machine in the cloud, and use it to run Visual Studio. That way they can write code anywhere they have an internet connection.
Mark Rendle commented
Nice idea, but looking at the specs for VMs, you'd be looking at a Large instance for a usable Visual Studio 2012 environment (Medium has only 2 1.6Ghz cores and 3.5GB RAM), and a Large instance will run you $230 a month. That's pretty steep.
Using the new VM Role (currently in Beta) you could probably do this over a Remote Desktop connection.