BlackBerry Partners Fund launched its fourth annual BlackBerry Partners Fund Developer Challenge, enabling developers of BlackBerry smartphone and tablet apps to win from a US$3 million prizes fund. Winners will be selected across four global regions – North America, Latin America, EMA and APAC – with three categories: Best Adobe Flash/AIR app, Most Innovative BlackBerry WebWorks app; and Most Addictive social app using the BBM Social Platform.