The update for the Xbox 360 that we covered in Gamercast Episode 66 is due to arrive this week, some of the improvements include low-power download mode, and Windows Live Messenger support.
IGN however totally got the wrong end of the stick, it looks like while writing up this article somebody forget to check the date, this article is based upon a page on Xbox.com which is talking about last year's update which was released on the 6th of June, unfortunately some people didn't check IGN's article out for accuracy and are now screaming bloody murder because of the update being delayed.
It is not delayed, it's coming sometime this week, not next month, that's the official ETA for this year's spring update.