Lenovo has announced the Skylight sub-notebook which uses Qualcomm's Snapdragon chip, runs Linux rather than Windows and will sell for around $499 (£308) when it goes on sale in April. Using the ARM chip architecture, Lenovo's Linux device represents a significant move away form the common Intel/Microsoft Windows model for computers. Lenovo in the US is using the increasingly common term 'smartbook' to describe the device – which is smaller than a netbook but bigger than a smartphone – although in Europe there remains a copyright dispute over the use of that name. Weighing in at around a kilogram, the Skylight will apparently boast 10 hours of battery life, has a 10 inch screen and has Wi-Fi and 3G connectivity.