         ,           .        2009   HTC HD2,    Windows Mobile 6.5,          Windows Phone 7/7.5/8   Android   Ubuntu  MeeGo.     ,    CotullaCode          Windows RT.
,  Windows RT             ARM- ( , Microsoft Surface) ,   , ,          .     CotullaCode   ,    Windows RT  ,    HTC HD2  Qualcomm Snapdragon    1    512  RAM. ,         .