[Benioff contends that this approach will eventually change the entire structure of his industry. Software over the Web -- commonly called on-demand -- accounted for less than 10% of the $46 billion in corporate software sold last year. But he says creating an open marketplace for on-demand software will help cause the decline of the big, complex, and expensive corporate applications sold by the likes of SAP ( SAP ) and Oracle Corp. ( ORCL ).] It's a big leap for us, ... We think it will show the world the next step for on-demand computing, just as we showed the world the first step.