Webwire: Opera teams up in China; Vodafone suffers hack attack

Opera will combine its browser with China Telling’s content, operations and distribution under a new joint venture between the pair.
UK anti-austerity campaigners hacked one of Vodafone's blog sites to post claims the company owes millions in tax to the government.
Mexican telecoms tycoon Carlos Slim has been named the world's richest person for the second year running by Forbes magazine, which estimates the mogul has a fortune totaling $74 billion (€53 billion).
Rovio Mobile, developer of the Angry Birds mobile game, has raised $42 million (€30 million) in Series A funding, and appointed Niklas Zennström, co-founder of Kazaa and Rdio, to its board.
Indian operators Idea Cellular and Etisalat will lose licenses in some telecom circles if they fail to justify missed rollout obligations.
Google has unveiled a new tool that allows users to block unwanted domains in search results.