From Free Pascal wiki

Oops - a decade later and I'm now simply Trev having forgotten about any previous login. Memory, I knew it well, once ;-)

I've used Delphi since v1 and also Kylix since v1 for porting Windows apps to Linux/FreeBSD. However Kylix is getting long in the tooth (to say the least) and does not help with Mac OS X... which is where Lazarus and Free Pascal come in.

I'm in the midst of moving a Windows app to Mac OS X (Tiger) with Lazarus and, so far, it's coming along nicely.