The speculation about whether Apple will include it’s Multi-Touch user interface into other products started right after the new UI was unveiled during iPhone presentation.

To be more precise, there never was a question “If”. It was “When” and “How” Apple will go about making it’s Multi-Touch iMac’s, Macbooks and iPods.

New Apple’s patent application, called “Multi-Touch gesture dictionary” now gives the answer to the “how” question.

To make your next Multi-Touch Macbook or iMac, Apple will create an interactive Multi-Touch gesture dictionary software application. This application identifies a chord (e.g., a combination of fingers, thumbs, and/or other hand parts) presented to the multi-touch interface by the user and displays a dictionary entry for the identified chord

Multi-Touch dictionary can be a separately installed application or it can be made a part of Mac OS running in the background, translating various Multi-touch gestures into a commands for other applications.

The application can also be made interactive, allowing the users or other application designers to define their own meanings for various multi-touch gestures.

And it does not stop at simple 2 finger gestures seen in the iPhone, but can interpret complex multi-finger and multi-handpart touch gestures as well.

Universal multi-touch dictionary application is the latest and most comprehensive indication how the new interface might be implemented.

And it does not even require any new fancy touchscreens. A simple touchpad, backside touchpanel on iPod/iPhone Nano or Multi-Touch mouse can capture the gestures and with the help of the dictionary translate them into application commands.