techcrunch.com — Big news from the UK this morning: Vodafone , one of Europe's biggest mobile operators, has made a formal offer to buy up the assets of Cable & Wireless Worldwide for £1 billion ($1.7 billion), a deal that catapults Vodafone into running its own fixed line network in the UK and specifically will give it a much bigger view to winning enterprise business - a big challenge to BT and a mark of further consolidation in the space.