This summary provides the key information from the document in 3 sentences: The document is a weekly cheat sheet covering innovation, technology, culture, agency news, and sustainability from April 9-16 2012. It includes stories about an iPad app for autism communication, the world's largest Rube Goldberg machine, using QR codes to encourage tree adoption, and how games can educate children about sustainability. The stories are from sources like CNN, Mashable, Ad Age, Grist, and PSFK.