As much I understand, the service (not the device) is not generally available? When will it be ready? When will it be possible to use it from other countries (

As much I understand, the service (not the device) is not generally available? When will it be ready? When will it be possible to use it from other countries (other than US)? The service as such is very interesting, for example, when I want to have quick access to a Linux/Windows desktop with a particular OS without the need to install on real iron. Depends of course on the pricing. The idea sounds really neat!