I just looked a bit closer at my prepaid 4G service and discovered I can get a 5Gb block at the same price as the 10Gb so I am back up and running.
I am now puzzling over how to find @xeroc's piston.web code, realising that he has already built most of the glue between piston and an interface, and this would cut out a lot of work for me, letting me focus on a frontend, and @leprechaun wants to build a wxwidgets frontend as well, but now I don't know where to find piston.web. halp!