I have the latest of MyWi and i believe it's in beta version. I use to use it to tether with my KindleFire and my HP windows7 laptop all the time but in the past few days and weeks it hasn't been working. Two days ago i tried using my kindle and it wouldn't connect but once and that didn't last long and today i tried using my laptop and my laptop kept prompting "WINDOWS WAS UNABLE TO CONNECT TO...!" That's funny bc it is working via usb. I don't know what went wrong and i hope to find the answer real soon so if anyone can help me out with this, i'd really appreciate it.