Acknowledging Apple's early success with the iPad, Microsoft CEO Steve Ballmer insisted Thursday that the software maker is hard at work on Windows-based tablets.

"They'll be shipping as soon as they are ready," Ballmer said, offering few details on the products, which he said will come from partners, not Microsoft itself. "It is job one urgency. No one is sleeping at the switch."

Speaking to financial analysts, Ballmer said the goal is "not just to deliver products, but to deliver products that people want to buy."

As for Apple and the iPad, Ballmer said, "they've sold certainly more than I'd like them to have sold."

But he added that Microsoft has a lot of software knowledge and intellectual property from the decade it has spent in the tablet business. He said the task Microsoft faces is similar to the early days of the Netbook, when many of those machines were Linux-based. "We have got to make things happen," he said. "We're in the process of doing that as we speak. We're working with our hardware partners. We're tuning Windows 7."

Full story: c|net