[ptx]

There is Free Pascal[0] and their Lazarus IDE[1], which are free, open source, cross-platform and largely Delphi-compatible – but they still don't seem to be taking the world by storm.

[0] http://www.freepascal.org/

[1] http://lazarus.freepascal.org/

[Joeri]

That is true, but I suspect it is due to Pascal style languages falling out of fashion more than anything else.