Multitouch is spreading to more devices
This is the interface introduced with the Apple iPhone, then carried over to the iPod Touch. If you're not a gadget person, you might not realize that this is not the traditional touch screen used on what we called PDAs in the olden times, but it's that feature where you can flick, swipe and squeeze your finger tips on screen to navigate or resize an image.
It's now appearing on the the touchpad of the MacBookAir, and according to Mossberg, another company, Synaptics will use something similar for the touchpads it produces for laptop manufacturers.
And, you have the companies such as HTC who are making cell phones with a Multitouch-like capability to ride on the coattails of the iPhones popularity.