I had a couple people make the analogy that using RITW while driving is like texting while driving, but it's really not at all. I've found (and most would agree) that tapping on your steering wheel does not require your full attention and definitely does not distract from watching the road. Your eyes never need to leave the road while tapping. Obviously texting requires you to look away from the road and that behavior is a completely different beast entirely.
People already tap on their steering wheels while driving... even without specialized steering wheel covers. When I use the product while driving I keep the left hand stationary on the wheel and tap with the right. Both hands are always at the wheel, ready for adjustment if necessary. Obviously, people must be aware of driving conditions and act responsibly. You don't take a sip of your coffee when you're taking an exit, adjust your radio / climate control when you're trying to switch lanes, or play with / look at your GPS while making a sharp turn. As a driver, you shouldn't ever set your GPS while you're moving and you shouldn't play with the iPhone app while you're moving either. There's really no reason to anyway.