As you can see from the video, Sound is now operational on the FLOW. As always we would like to thank the Open Source community for making this possible and we apologize for the endless nights and days of bugging everyone about every small thing we had to ask. You can find out more about this device and what we do at our website www.gizmoforyou.com Have in mind that everything we make is Open Source and hand made. Everything is assembled and soldered by hand which makes each Gizmo unique.