As anticipated, Google has just launched its cloud service for businesses at Google I/O 2012, called Google Compute Engine. Starting today Urs Holzle announced "anyone with large-scale computing needs" can access the infrastructure and efficiency of Google's datacenters. The company is promising both performance and stability -- Amazon EC2 they're coming for you -- claiming "this is how infrastructure as a service is supposed to work". It's also promising "50 percent more computes per dollar" than competitors. Beta testers will be on hand at later meetings to give impressions of the service, if you want to know how running your apps on 700,000 (and counting) cores feels. During the presentation we got a demo of a genome app and we're sure if we understood what was going on, it would have been impressive.