With the launch of the iPhone 4S, new voice system, Siri has been getting a lot of attention. It took the software company Dexetra eight hours to create Iris which is an Android knockoff of Siri.Even the name Iris, which is the reverse of Siri, stands for "Intelligent Rival Imitator of Siri". Dexetra made an improved version of Iris available as a free app in Googles Android Market. written by Amy Gahrah on cnn.com.posted by Devin Lowther