The world's second (or third) biggest PC manufacturer has announced plans to invest $800 million in a new mobile product-centric facility. Lenovo wants to get closely involved with the lucrative world of smartphones and tablets, promising that several thousand employees at the new base in Wuhan will focus on new mobile devices for both China and overseas. Lenovo's pegged to launch the K800, one the first Intel-powered Android phones, at the end of the month, but this marks a concerted effort to advance both its tablet and phone collections -- and of