One of the obvious advantages of netbooks are their size. They are very portable and can be used just as much on the move as well as at a desk. But to be used on the move you need a battery and a battery that only lasts an hour or so kinda of kills the idea of a netbook. Many netbooks have great battery life, but MSI have just launched the new MSI Wind U110 ECO with a reported battery life of 15+ hours!