Samsung today gave owners of the original AT&T-branded BlackJack smartphone a Windows Mobile 6 upgrade.The update could be accomplished via a desktop download directly from Samsung. BlackJack is available in the US exclusively through AT&T. With the Windows Mobile 6.0, BlackJack users can now use Outlook Mobile as well as view PowerPoint documents and manage Word and Excel files via Office Mobile. BlackJack users can now also read HTML emails which Windows Mobile 6.0 supports. You can upgrade your BlackJack handset from Windows Mobile 5.0 to 6.0 by downloading the software here.