So after my mini-rant, what is the change? There are actually three. The first one is that users must use Microsoft Silverlight to watch live streaming content. OCT correctly notes that the Silverlight plug-in works with Windows, Mac and Linux. For Firefox users, no fear; you can use Silverlight in your favorite browser! Second, users can now listen only (no video) to live streams. And third, you can live stream on your IPhone.
One final note: There is no mention of the change and Silverlight requirement on the City Council Web site; you can link to vids from there, too.