There's a couple of features that need to be implemented before I can call DoomRL 1.0. It will also be the final version, so I wouldn't be so keen on your place to see it fast ;].
There are going to be at least 3 public releases before 1.0:
0.9.8.7 -- almost ready, in the Release Candidate phase
0.9.9 -- polishing up the old features and adding graphics
0.9.9.5 -- rewrite of the major systems (dungen, vision, AI, item generation)
1.0 -- final polish, scripting API, full story mode, translation support