It's pretty, and sounds good. I've used Nagios for server monitoring in the past and that can be a bit of a pain, but that's because you can use it to monitor damn near anything. As a sometimes-sys-admin, I assume that in order to achieve your claim of "Monitor virtually any Linux, Windows or Cloud Service" that you're going to be offering only pretty basic metrics. Can you elaborate on how you'll keep it simple when dealing with virtually-infinite possible combination of server configs?