I didnt exactly consider having plotting fuctionality added, as I was just happy to get it working. I figured the lack of an X-Server on iOS would make adding GNUPlot a waste of space. I could probably add PyX in to use the pdfdump fuction if you want... As for the IPv6 error, I cant exactly recompile a closed source kernel, can I? Plus, I would bet anything you dont regularly use IPv6 anyways.