I was migrating wireless APs from one network to the other and working on servers and everything was reset to DHCP. All of a sudden I needed to know network information: IP Addressing, MAC addresses. I fired up my Windows 7 based tools and then while waiting fired up Linux to use NMap; however, before I could reminisce about the Matrix and Trinity using NMap to hack into the power grid I thought about my Android phone. I found Network Discovery in F-Droid worked extremely accurately and a great deal more quickly that my Windows PC and was just more fun to use. It feels like a Tricorder which is so much more appropriate.