Tango vs Phobos

[Walter Bright]

Lars Ivar Igesund wrote:
> There isn't really a subset of Tango that can run on top of any Phobos
> runtime. The Tango runtime probably works fine with D2 without any major
> changes, it is the user library that is problematic. The work on the
> porting has begun in a branch in Tango's svn repository, but cannot be
> continued properly until certain issues are fixed.

I don't understand. I fixed the one issue you identified to me that was 
impeding Tango on D2 (Bugzilla 1644, and 2204 is the same). What else is 
there?