World Tech Update, Oct. 13, 2011

October 13, 2011

Coming up on World Tech Update this week the Apple iPhone 4S gets ready for sale and Macworld's Jason Snell takes a look at the phone's Siri voice recognition, BlackBerry users are hit with a major service outage, 3M shows solar window film at Ceatec in Japan, a new, tiny sensor detects slight movements, an NTT DoCoMo app tells you if you're fat and need to hit the gym, Murata's self balancing robot attempts a new trick and a robo arm makes the weak strong.