The app can be downloaded for free directly to the user’s BlackBerry smartphone by visiting the XING mobile website. The appropriate version is automatically detected and then displayed for download on the login page. The XING app requires an … Free BlackBerry Storm and iPhone Apps of the Day: GIST (Data Speed Monitor ). Free BlackBerry Storm App: StormSketch Turns Storm into Sketching Tool. Free BlackBerry Storm App – Goolge Maps for BlackBerry Storm with GPS. …