How do you propose to register a finger swipe with a mouse?
Apple would never allow it. But there is one that you could use if you jailbreak. It isn't the best and the interface is very clunky to use.
Click, drag and release.
Agree it would eat away at their Computer sales, especially the $999 MacBook Air. Lastly, you might end up getting a first gen apple TV that people could hack and run Mac OSX which challenged Mac Mini Sales.
A "tab" function would be easier to implement and far less clunky.Its more about clicking in different fields. Ie ________name then another for last name _________. Each one of those have to use finger to do. If you miss can cause issues on some sites. I would like to have the option to turn on when using the screen for long emails, or other programs requiring to touch screen a lot.