The author's Kindle from Amazon is fun. It's usable. And when he uses it in a public place, it makes him a geek magnet, the way a puppy attracts smiles and small talk. But the Kindle is a big, big step away from showing people what real e-books will do for them. Considering it merely as a usable device, there still are lots of rough edges, besides the fact that it's overpriced. Likewise, while much of the user interface is serviceable, there are some unexpected curves in it. The Kindle's assumption that books are just for reading keeps it from becoming the e-book reader people need, one that assumes readers are in constant dialogue with what they're reading.