Google has begun a competition offering more than £2m in prize money for those that can hack its Chrome OS
News hackathon
Video: Charity Wins Financial Hackathon Held By Tradable
App which donates money to charity gets the main award
MWC 2012: ITU And Telefonica Announce Green ICT Hackathon
Application developing hackathon focuses on sustainable energy as part of UN's International Year of Sustainability Energy for All