UK mobile giant Vodafone is planning to buy up commercial network provider Cable & Wireless for just over £1 billion ($1.7 billion). If successful, it'll gain a national fibre-optic broadband network (separate to BT and Virgin Media's), a large portfolio of business customers and a backbone venture that connects 150 countries with undersea cables. The latter will probably be sold off so that Vodafone can concentrate on winning more enterprise customers from its rivals while also easing the burden on its own network. It's also wo