Last year I purchased Kylix1 Desktop Edition.
I found a few problems with it and the way Borland responded to show stopping bugs (memory leaks in the threading model for database connections, to name one). However, over all I was pleased with it and the ease with which apps could be developed. My greatest concern was over come when I found that by using the beta4 version of the Zeos PostgreSQL datbase connection via dbExpress I could write data management apps using Kylix. However, since I had moved on to C++ and KDevelop using QT3 data-aware widgets, which included native connections to PostgreSQL, I felt no further need to explore Kylix.

A few weeks ago Borland released Kylix3 in the Open Edition (makes GPL apps only) and the Enterprise Edition ($2K).
I noticed that the memory leak was fixed. I went out to the Zeos website and downloaded beta6 (Zeos never seems to gete out of beta, but then neither has MS :) and followed the procedures that were successful for installing Zeos's PostgreSQL dbExpress components on Kylix1. The component compiler failed to find the necessary files. Apparently Kylix3 component compiler expects dbExpress components to furnish a slightly different set of file extensions than were required for Kylix1, so I was unable to get PostgreSQL 7.x connected. Intererstingly, Borland is offering the PostgreSQL7 native connection dbExpress component for Kylix3 as a free gift for purchasing the Desktop Edition. They didn't supply a download link to the DE so one must purchase the boxed set.

I also used cvs to pull down the latest freeclx files from SourceForge, but they would not install on Kylix3 either, because they, too, failed when the component compiler tried to compile them.

I don't know if the procedure has changed or if Zeos and freeclx have to modify their code. If modifications are necessary I don't know how long they will take. There are a precious few commercial components for connecting PostgreSQL to Kylix1 (and I assume Kylix2), but Zeos was the only GPL component that I have found, and this is year after Kylix1 one was released. My feeling is that Kylix has not meet with the wild approval in the Linux community that Borland had hoped for, their PR not withstanding. The problem, I believe, is that the competition from KDevelop+QT3, BlackAdder, and some other tools, are greater than they suspected. Aside from the few WinXX Delphi coders who ventured shortly in Linux waters, I have seen very few apps in the Linux community that claim to have been built using Kylix. All are either KDE or GNOME apps, using either KDevelop or Glade.

Anyone else try Kylix3 OE and attempt to connect PostgreSQL 7.x???
JLK