I don't always agree with Nicolas Negroponte (right), but he made a point in Korea recently that really makes sense.

Simplicity is the secret of cellular success.

This is true for hardware, for software, and for services. Future hardware designs must make it easy to connect, hands-free. Software must have intuitive user interfaces, as simple as speech. Services need to be spur-of-the-moment.

A lot of the mobile services I see today violate these principles big-time. They're based on Web interfaces, and thus have a limited time horizon. The key is to get inside the phone, so you're bought as soon as the customer thinks of buying.

Rather than thinking of a browser as something you look at and type at, as is done with even the best mobile browsers, how about a browser you talk to?

Use Negroponte's Mobile Clue and prosper.