NEW YORK — At the Digital Experience tech event here, I had a chance to see the new touch pad technology coming this fall from [Synaptics](http://www.synaptics.com) (NASDAQ: SYNA).
Picture a trackball that keeps spinning after its initial push or a child’s matchbox car racing across the table after its windup.
That’s what’s ahead with touch pads as Synaptics’ momentum functionality comes soon to laptops. This feature is already present on the [Samsung Instinct ](http://www.samsunginstinct.com)mobile phone.
Scrolling momentum you create with just one flick of the finger will come in handy when slogging through long documents such as Excel spreadsheets.