Currently we are considering using the Net4Native SourceForge project (http://sourceforge.net/projects/net4native). That way one codebase can be maintained while still having a .NET component which only requires the Borland.Delphi.dll run time assembly.
More info soon.
Any help with this would be appreciated. Either leave a message in the TFieldedText SourceForge Developers forum or email me if you wish to participate.