Microsoft outlines vision of pay-as-you-go computing - CNN.com

U.S. patent application number 20080319910, published on Christmas Day, details Microsoft's vision of a situation where a "standard model" of PC is given away or heavily subsidized by someone in the supply chain. The end user then pays to use the computer, with charges based on both the length of usage time and the performance levels utilized, along with a "one-time charge."

Microsoft outlines vision of pay-as-you-go computing - CNN.com