Logged In: YES 
user_id=149084

Not so crude, since there is a Mac/IDLE/ dir? I
gather this works ok for 2.5 installs on OSX?

Perhaps IDLE should be modified to try to detect
the platform and only use the entry in
config-main.def if detection fails.  The [keys]
section is necessary, I believe, to mirror the
[keys] section in the user's config-main.cfg if
he changes keybindings.

But you would still need Mac/IDLE/, would you not?