While no doubt swathes of Android and iOS users have experienced massive productivity slumps since Angry Birds Space came out this week, Windows Phone users will be left staring at their spreadsheets. Peter Vesterbacka, chief marketing officer at Rovio has told Bloomberg that there are no plans to release the latest iteration of the popular time sink on Microsoft's mobile platform. Despite still being the most popular app in the Marketplace, Vesterbacka claims that "it's a big undertaking to support it, and you have to completely rewrite the application." So, for