GNU C developers should go for it, they're language seems to be much closer already.
</sarcasm>
Honestly, what craziness made them add such a feature? If programmers come from C/C++ to a (slightly) Pascalish language, one might think they would at least want to learn the basics of the language. Otherwise, why don't they stay with C/C++? Even Borland has a C++ compiler, don't they?
IMHO it is no use to support a subset of a dialect (e.g. Delphi), and not at least strive to go all the way in the long run.
Compability is of little use in practice if it requires more changes than once every 100 lines. (and that is libraries + language)
(one can of course strive for a lesser version than the newest Delphi version at first)