Skype, the IP telephony company founded and part-owned by Swedish entrepreneur Niklas Zennström, has been bought bought by US software giant Microsoft, the firms confirmed on Tuesday afternoon. The statement confirmed speculation over the deal to buy the firm, whose product allows users to conduct video and telephone calls over the internet. Microsoft confirmed that the deal is worth some $8.5 billion, dwarfing the $6 billion the US firm paid for online advertising firm aQuantive in 2007 and its largest acquisition since its founding in 1975. The news of the pending deal has shocked analysts who consider the price to...