For those who can't compile Katy v0.3.1 for whatever reason, here is a binary tarball that you may be able to use.
It was built on a Debian testing/unstable machine using Qt 3.0.5 and KDE 3.0.4.
The tarball directory structure is usr/local/bin, usr/local/share and usr/local/lib, so you may need to move some stuff around to the correct locations for your distribution.
Yep, a year and 2 months after the last release, v0.3.1 is out. It's been ported to KDE3 (fairly trivially) and a few other bits have been added/fixed.
Katy v0.3 for KDE2 has been released. This is a rewrite of Katy for KDE2 to take advantage of KDE2's new features. Downloads are available in the form of RPM, source RPM and source tarball.
I've started a rewrite of Katy for KDE2. The current development source is in SourceForge CVS. See the CVS section of Katy's project page on SourceForge (http://sourceforge.net/projects/katy/) for information on how to get hold of the source.
Please bear in mind that this is a rewrite in progress! It is not functional to the same level as Katy 0.2.3. But I aim to have it at the level by mid-December.