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 (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 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.