emberjs/ember.js — pull request #954 by Me1000 (2012-06-05 21:47:28+00:00)
Title: Fixed Ember.run.later so that it returns the timer object itself, not the guid (per the documentation).

Docs say the later method of the runloop should return the timer itself (so you can actually cancel it later), but it was implemented such that it only returns the guid of the timer. This fixes that issue.