[JuDue]

Yes.

And this refers to the interface.

In the past there were touch interfaces that were fiddly and required a pen to interact.

Jobs believed that was a poor interface.

For example, the new Office 365 for Windows still has loads of awkwardly sized buttons and drop downs, making it difficult to use via touch.

Some reviews have pondered how seriously MS is taking touch interfaces. But maybe this is why the Surface Pro comes with a stylus...

[theguycalledtom]

Upvote for you sir! Exactly, you don't need a stylus to run the Win8 UI. A touch interface should be designed with a finger as the primary interface in ind, which was what Jobs was talking about.

A Pen is just an additional tool to make the tablet experience better in various use cases, just like a bluetooh keyboard.