This document discusses the history and development of voice recognition and voice search technologies on mobile devices from 2007 to 2012. It covers early apps like Vocaloid in 2007, Shazam in 2008, Google Translate in 2008, and voice input features introduced by various companies over time, leading to advanced voice assistants like Siri being introduced on the iPhone 4S in 2011. It also mentions new voice recognition startups and social media presence of these companies during this period.