The people that make KDX have a major attitude problem and are very rude. Go look at their FAQ's and documentation if you don't buy that.
Their FAQ states falsely also:
"You might experience problems with these:
* Little Snitch by Objective Development (on MacOS X). Causes networking problems."
Little Snitch does not cause networking problems with anything. KDX has networking problems, I've been using the server and client for a long long time, and they have had issues with dropouts in network speed and connection for at least two years, regardless the version. And it got worse with Leopard. To make a blanket statement about Little Snitch (which has NEVER caused any networking problem for me), is just wrong and stupid.
Most of the people I know using KDX are changing...we're tired of their attitude and their unwillingness to listen to user suggestions about making changes for the better in the applications.