I can think of at least Date module which ships with a PHP4 compat module already. Having a centralised one would take the load off individual developers and IMO make it easier to drop PHP4 support later on (i.e. the module doesn't get upgraded to Drupal 7, and the modules which use it don't have to clear out a lot of PHP4 specific code when upgraded). Good idea.<br>
<br>Nat<br>