Let me be the last to write about it. ;-)
Borland / DevCo / DTG (they still have no final name) has released something they call the "Turbos", which means that it is a version of the Borland Developer Studio that is fully functional but only supports one of the four programming languages of the full BDS. There are Turbo Delphi, Turob Delphi for dotNET, Turbo C++ and Turbo C#.
And what's the best: There is a free version called "Explorer Edition" that can be downloaded from
www.turboexplorer.com. It has only one real restriction as compared to the "Professional Edition", which can be bought from Borland: It does not allow you to install additional component packages or package based IDE experts (DLL based experts like
GExperts work though). That's not
too bad given that it includes the full range of the standard VCL components and that you can still instantiate additional components in code.
"Free" in this case means, that it doesn't cost you any money and you can pretty much use it for any kind of development you like, which explicitly includes commercial use. It does not mean that is is Open Source, though.