Mobile entertainment applications development firm Emotive Communications, founded by Anthony Stonefield (founder and CEO of Moviso), has been acquired by San Francisco-based mobile advertising firm Zad Mobile, for an undisclosed amount. Emotive, founded in 2007, has an application called Ringjam, which allows sharing of of licensed music and video clip. Its investors included Bertelsmann Digital Media Investments and Warner Music Group (NYSE: WMG). Stonefield will now join as EVP of Zad Mobile. More details in release.