Hitachi announced this week that it will soon be shipping a diskless notebook computer. Everything will happen via wireless networking (and nothing at all will happen when it’s not connected). It will be more secure than a traditional laptop, since if it’s lost or stolen, there will be no data on it for bad guys to swipe. Such a device might useful by some low-level corporate drones, and in industrial and government applications, but it’s wholly unsuited for the small business. Plus, you pay extra for the neutered machines: About $2500. Better bet: Get a real notebook with good security, like an IBM ThinkPad with biometrics.