Kalculate is now in a stable release. Packagers needed! If you create a package for your favorite distro, please email it to me!
There was an infinite loop in the KDE 3 release. I've fixed it and replaced the tar file. Please download again if you didn't see this message the first time you downloaded.
The new 0.2 release is the port to KDE 3. Please make sure you read the README file before you compile, it has important info.