I'm using a Xperia Arc and I'm really loving the rom. And I activated the navigation bar through editing the build by typing in qemu.hw.mainkeys=0 It works well like a Nexus but I'm just a bit bothered by it when I auto-rotate it in 90 degrees when I'm playing games. The buttons are misplaced. Here's a screen shot: http://i1332.photobucket.com/albums/w617/dudong1234/Screenshot_2013-07-28-09-27-38_zps88495746.png