The latest version is that I have built an Ada version of wish. The next step is to develop Ada bindings to the Tk widgets. There is a nice extension to it that converts the c code XForms spits out to ada95. It is available on a wide variety of platforms and has excellent documentation. These interfaces will provide the same functionality as the C interfaces, but will incorporate encapsulation, information hiding, and other features available in Ada.
More detailed information is available.
XView Library for Ada95 Andreas Almroth of GWU announced the release of the XView Library for Ada95 . It is a small library for Ada95 using Gnat on a PC running Linux. The library implements some of the objects in the XView C Library. XV Ada Library is actually a bindings package for the XView library. I have built a new own library upon the XView bindings in hope of that this would be easier for programmers to deal with.