"... The IBM-Google cloud, which to Microsoft might look more like an approaching thunderhead, runs on Linux, which has long been embraced by IBM as a non-Windows alternative. It also includes Xen systems virtualization and Apache Hadoop -- an open source implementation of the Google File System.
Google has already rolled out to consumers a number of free, cloud-based services such as e-mail and storage, but it's barely tapped the lucrative commercial market. With the exception of security requirements, "there's not that much difference between the enterprise cloud and the consumer cloud," Schmidt said at one point....."