If people who work for you can keep adding value to you when they're away from their desks, it oils the wheels and increases productivity. If you're in the trucking business, you can find out where your trucks are, how long they stopped for lunch, and what routes they took.

The real utility we see in the wireless world is the whole mobility issue. It's going to be a massive area. There are going to be enormous technological shifts.

It is an early stage area. Which makes it fantastically exciting and fantastically unstable. In areas that change this quickly, it doesn't pay for you to buy today's winners and sit for five years.