Dear all,
some time ago, Gregor Richards has provided an awesome way to USB network with the DR800, and I am currently trying to get it working on the DR1000 with the latest firmware as well. With the largely common codebase, chances seem quite good for that. The main issue is some kernel problem with the usb gadget ethernet module which gives a segmentation fault when being inserted on the DR1000. If you know something about kernel modules and drivers and are interested in more information (esp. detailed dmesg dumps), have a look at the discussion which is held at this place:
https://www.mobileread.com/forums/showthread.php?t=81699