If you are connected to the internet on your PDA while you are waiting in the checkout lane at the supermarket, you can be online while you are waiting on line.
But seriously, rest-of-the-English-speaking-world, lines are one-dimensional. You can't be in them, unless you reduce yourself to a non-dimensional point. That's why all sensible people get on line.
Bob is right on this one. Dana, stop trying to corrupt him.