This information has been gathered from the new patent application (filed by Morrison and Foerster LLP in Los Angeles in June 2009 on behalf of Apple) Apple has put forward.

The Details which are revealed from the document are:

• Integration of typing
• Resting
• Pointing
• Scrolling
• 3D manipulation
• Handwriting into a versatile, ergonomic computer input device.

The described system in the Documents say that we can:

Individually detect all ten fingers and separate palms on a person’s hand.

With this feature you can type, write, draw and interact with a device large enough to support multiple hands (Which again leads to the Tablet alone which can accommodate both hands)

Via Appleinsider.com

Key points of the invention, as described in the application, include:

• Integrating and distinguishing different types of input, such as typing, multiple degree-of-freedom manipulation, and handwriting, via different hand configurations that are easy to use and recognize.
• Includes an electronic system which minimizes the number of sensing electrodes to allow easier understanding of a variety of hand configurations.
• Provide a multi-touch surface that is contoured to be comfortable and ergonomic under extended use.
• Provide tactile key or hand position feedback without interfering with a hand resting on the smooth touch-sensitive surface.
• Provide images of “flesh proximity” to a variety of sensors that can distinguish hand configuration.
• Understand when the user wants cursor motion, and ignore commands when deceleration by the user is detected.
• Understand the movement of two or more hands to allow manipulation of two-dimensional electronic documents, like rotation and scaling of photos.