**THIS VERSION HAS BEEN UPDATED TO INCLUDE IPHONE 3GS LAUNCH COVERAGE. PLEASE REPOST.** World Tech Update is a recap of the week's technology news. This show can be used by any IDG publication and can be posted immediately. The script for WTU is for internal use only and is not to be published. In this week's show Iran's a-Twitter after elections, iPhone 3GS launches, Acer announces new phones for September, Samsung shows off an Android phone, Buzz Aldrin talks tech, new OLED technology is demonstrated and Guitar Hero is adapted for people with visual impairments and for amputees. Find out what's coming up on each week's show by following us on Twitter (WorldTechUpdate) or check out our Facebook fan page: http://tinyurl.com/wtu-fb