IDE written in D

[Chris]

> Is it right, that DWT is not further developed?
> The only stable option I know is GtkD. Is there any others?

GtkD works for me, the most mature framework IMO. DWT never quite 
made it. All other options have been discontinued as far as I 
know, like for example wxD. IUPD would have been interesting. Cf. 
http://www.tecgraf.puc-rio.br/iup/. Like Gtk, it is written in C, 
so maybe you can write your own D interface. The API is not big, 
they say.