"This project is currently on suspension while I work on Shoes. Expect a new release, based on Shoes, some time before 2008's end."
from http://code.whytheluckystiff.net/hacketyhack/
Given the amount of work he's put into shoes, I think he will easily be able to make this date.
But, no, a look at http://hackety.org/ suggests that _Why is just on one of those epic hacker side-tracks, like Knuth went on when he took a decade-long break to invent TeX. To make Hackety Hack work well cross-platform, _Why had to invent a cross-platform Ruby-based toolkit for web-like apps (Shoes) and he's still kind of polishing that. So I don't think Hackety Hack is dead, yet. It may merely be cocooned, preparing to burst forth like Mothra and blow us all away with hurricane force.