Joshua Gargus uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-jcg.279.mcz

==================== Summary ====================

Name: Kernel-jcg.279
Author: jcg
Time: 21 October 2009, 1:11:25 am
UUID: 7e01a4af-65e0-495c-8b9b-c38a13220660
Ancestors: Kernel-nice.278

#notYetImplemented now raises a NotYetImplemented error, instead of popping up a notifier. 

(The NYI class was introduced in Exceptions-jcg.14).

=============== Diff against Kernel-nice.278 ===============

Item was changed:
  ----- Method: Object>>notYetImplemented (in category 'user interface') -----
  notYetImplemented
+ 	NotYetImplemented signal
+ 	!
- 	self inform: 'Not yet implemented (', thisContext sender printString, ')'!