Amid reports that BlackBerry’s market share in the U.S. has reached an unbelievable 0% there’s also a rumor (backed up by a leaked apk) that the company is going to soon launch a BBM build for devices that still run Gingerbread, an Android version that was launched in late 2010. N4BB (via MobileSyrup) reports that BBM for Gingerbread is already available unofficially, providing a link to the apk file that can be sideloaded on compatible devices. According to the publication, this is a beta version of the app that has certain “tweaks in the UI” including a gray top bar and a “Find Friend on BBM feature.” The app runs “fairly well” on a Gingerbread device, but, in a bit