[masraum]

Absolutely, I use intermittent frequently. In my boxster, there's a rain sensor in the rear view mirror mount so the car automatically adjusts the period based on how much rain there is. They will speed up and slow down as the amount of wetness on the windshield changes. There's a rotatey thing on the stalk where the sensitivity can be turned up/down. The wipers will completely stop if the rain stops, and then if the rain starts up again, the wipers will start back up if you've left the stalk in the "auto" setting.

My wifes car is not that fancy, but it does have a rotatey thing on the stalk, so I can easily vary the speed of the wipers up/down as the wetness changes.