With cell phones becoming so commonplace, the cell carriers are wondering where to get their next million customers. Clark thinks they may tap the preschool market after they get done with the elementary school kids! In reality, they're focused on taking things that have become popular overseas and bringing them here.

Throughout Asia, you can go up to a restaurant that you don't know anything about; hold your phone up to the window; and photograph a barcode of sorts. That will bring up customer reviews and other information about the restaurant on your handset. The San Francisco Chronicle reports a similar service has now launched in the Golden Gate City. Look for it to become more widespread during the next 18 months to 2 years.

This business model won't just apply to restaurants. Let's say you're reading a magazine. There's an ad for a new release from your favorite musical artist. You'll soon be able to hold your phone up to a barcode on the page and cue up a sample of the artist's latest music. You'll also be able to click a button and purchase their new album. The cell carriers will, of course, get a cut of any e-commerce transactions.

Ultimately, you'll be surfing the web on your cell phone -- if you don't already do so. Clark recently got a Sprint PPC 6800 when his old cell broke. It turns out the PPC is the first cell phone to surf the web at high speeds like DSL or cable modem. When the Crackberry first came out, almost no one used it. Today 14 million Americans are Crackberry addicts. So the web will be huge on cell phones, and the barcode business model will be a part of the coming revolution.