90% of Software Can be Delivered Online

Eric Schmidt, Google's CEO, envisions that 90 percent of today's computing tasks can be moved online. High-end graphics processing is an example of a computing task probably not well suited to online use.

Google execs also argue that more and more computing tasks are unrelated to productivity suites. "If you're creating a complex document like an annual report, you want Word, and if you're making a sophisticated financial model, you want Excel. That's what the Microsoft products are great at. But less and less work is like that," said Google's Dave Girouard.

For now, 2.000 companies start to use Google Apps every day (most try the free version), Google Docs had 1.6 million U.S. users last month, according to Compete.com, while Gmail doubled its U.S. users to 20.1 million in November, according to comScore.