The third meeting of the Preparatory Committee (PrepCom) began its work on Wednesday, 13 June 2012, in Rio de Janeiro, Brazil. Seven "splinter" groups continued negotiations on the draft outcome document to be considered for adoption by the UN Conference on Sustainable Development (UNCSD, Rio+20), which is set to open on 20 June. Many consultations also convened during the day, along with approximately 20 side events, and numerous other events that took place throughout the city of Rio de Janeiro.

Find daily coverage of the negotiations on IISD website: http://www.iisd.org/rio/daily-reports/
And they now have a very useful mobile application : ENB Mobile will be available for iOS/Android users and also be accessible from other devices at http://enb.iisd.mobi/.