This may have flown a bit under the radar, but in light of the dearth of DR1000 apps (*) at this point:
UtterInanity has posted a port of the Leafpad text editor in the
iRex DR1000 Developer forum! It has optional line numbering, word wrap etc., and UtterInanity has already adressed a couple of issues. I think this is a useful addition, an din part the reason for my renewed request for a
visually improved on-screen keyboard.
(*) Of course, the ones that are available (like FBReader and now Leafpad) are very worthwhile!