Samsung i917- the phone Bill Gates prefered

Which cell phoen does Bill Gates use ? Have you ever been curious about that ?
Although in recent years Gates has focused on philanthropy, his concern for Microsoft never stopped. Recently, WPCentral dug up a post of Gates published through the Twitter microblogging client  in a windows phone.This Twitter Notes published on October 18 is also for charitable activities promotion : "Visiting with the team at DFID - http: / / twitpic.com/2yp518- innovative and impactful work that saves lives ... ..." , According to the image, WPCentral get the EXIF data and take some technical means to find out the equipment used is the Samsung Focus.

The Samsung Focus I917 supports 4.0” Touchscreen with Super AMOLED™ display, 5MP camera,1GHz Snapdragon QSD825 CPU and GPS,Wifi. It will be bounded with ATT. see more sepicifics:http://www.samsung.com/us/mobile/cell-phones/SGH-I917ZKAATT