An Xbox Live enabled version of the Windows puzzle classic (which must surely also be one of the most played videogames of all time), has just joined Sudoku on Microsoft's smartphone platform. It includes Classic and Speed modes and Xbox Live features: ten Achievements and leaderboards. The downside is, however, that they're only available in the US.
http://www.next-gen.biz/news/free-mi...indows-phone-7
