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 giv