Always keen to knock off someone else's ideas and then sink a huge amount of money into becoming the new standard in that area, Microsoft have set their sights on challenging BitTorrent. The company have promised to release an alternative to the P2P file-sharing network, called Avalanche. The new software is currently being developed in Cambridge, UK, and will include a new 'publisher certificate' solution which utilises DRM to ensure that only legal content is shared.