It used to be a simple equation – on the road you had an underpowered but light machine to take notes, while back in the office was a powerful desktop for most of your day-to-day work. Today, however, things are blurred, to say the least. When you’re out and about there’s a choice of mobile phone, Blackberry, ultra-light portable or laptop, while in the office, it seems you really don’t need a desktop at all, with some laptops now sporting 17-inch screens and enough processing power to handle anything you can throw at them.
There are, however, a few things to bear in mind. The biggest issue is battery life – in a highly powerful machine, don’t expect longevity. These are really designed to be used at a desk, next to a power supply. If battery life is an issue, then it’s well worth looking for something with a slightly lower spec – it may not be as quick, but at least you’ll be able to get your work done without the horror of the "low battery" warnings. For processors, look out for Intel’s Core™ 2 Duo processor – it’s the best around at the moment, and will give you desktop-like performance without almost instantly draining the battery.
Here are a few of the best of the new breed of dual-purpose portables.