Glenn Fleishman has put to byte some thoughts about Bluetooth and (not Versus) Wi-Fi. It's one of the better short-and-to-the-point explanations of the two technologies, explaining why they can co-exist. If you need to explain to someone why you would use either, this is a good starting point.

"Bluetooth proponents picture a world of roaming devices and people.... Wi-Fi backers break the world into zones at home, work, and on the road, that offer access to larger networks."

"Distilled: Wi-Fi solves bandwidth-heavy, network-based (whether intranet or Internet) connectivity; Bluetooth offers ad hoc, resource-based opportunistic availability."

"A company called Digit Wireless has developed a unique keyboard called the Fastap for mobile phones and devices that combines the functionality of a full-sized keyboard with the form factor of a cell phone. Very interesting..." [CamWorld]

Finally some input innovation for a cell phone. I read somewhere that kids in Finland can type faster on their cell phones than on a computer (I can find the cite if you really want it). Imagine what they'll do with this little puppy. Maybe they'll write the great Finnish novel on their cell phones.

This is why I say you can't discount eBook technology. You just don't know what someone will think up that make it better, faster, stronger. "We have the technology."