The Kindle is the most successful electronic book-reading tablet so far, but that's not saying much; Silicon Valley is littered with the corpses of e-book reader projects.

Everyones always asking me when Apple will come out with a cell phone. My answer is, Probably never.

There's one thing that shows up on all of the lists of what makes us human: language. Our ability to share our thoughts and complex information with others far surpasses all the barks, squeaks and growls of our animal friends.

Walking is a skill that took millions of years for us to develop... If you wanted to design a robot that could walk as well as a person, this would be fantastically complicated software. It would have to be doing billions of calculations with every step.

People won't start dumping Google en masse; Google is a habit.

The biggest surprise watching video on the tiny, 2.5-inch screen (320 by 240 pixels) is completely immersive. Three unexpected factors are at work. First, the picture itself is sharp and vivid, with crisp action that never smears the screen is noticeably brighter than on previous iPods. Second, because the audio is piped directly into your ear sockets, it has much higher fidelity and presence than most peoples TV sets. Finally, remember that a 2.5-inch screen a foot from your face fills as much of your vision as a much larger screen thats across the room.

The rise of the citizen review site is a sobering development. No longer are you on top of the mountain, blasting your marketing message down to the masses through your megaphone. All of a sudden, the masses are conversing with one another. If your service or product isn't any good, they'll out you.