I like Wi-Fi, but I can't say I'm enamored with the idea of turning every public place in America into a hot spot. The act of turning every public place in America into a cell phone zone has been annoying enough.
Anyway, this article sets forth a new set of fears about the coming Wi-Fi onslaught. I don't worry much about the on-line privacy stuff (though it's a small concern), but I do wonder about the commercialization angle.
