Pete Greig is one of HIM's Honolulu 2011 plenary speakers. He'll also lead seminars at next year's conference. A founding champion of the 24-7 Prayer Movement, an international intierdenominational prayer, missions, and justice movement which has touched more than 2 million people in 105 nations. He's written several fantastic books on prayer, including "God on Mute." He also heads up prayer for Holy Trinity Bormpton Church in London, England - where HIM founders Dan and Pam Chun heard Pete speak this summer.
More on Pete here.