viper4Android was a part of the HD7 package. Despite all my attempts I could not locate it while I had HD8 installed. I finalled just downloaded the flashable zip file for vipe4android and installed it. I had a challenge determining if it worked. Does anyone have it worknig with the stock samsung music player (I assume that is the music player within HD8). I downloaded amazonMp3 player and that doesn't seem to work. I downloaded google Music (which I an not a big fan of) but that did appear to work. What music players does it work with? what setting do you have? Normal/Compatible? did you only change the 3 lines in the build.props?