Now, after many online video sites have it, YouTube officially announced their switch to wide video. Long after sites like Blip.tv,Vimeo, SmugMug and foremost Joost (which we start to integrate more and more here, see).
As rumor goes, YouTube is finally giving in to this trend to foster a recent agreement with MGM to expose their (obviously mostly letterboxed) content.
An interesting detail about YouTube's recent change is how they handle the wide video in the backend. Some reader might shed some light here, as we haven't the time to investigate into it, but as it seems on most videos the letterboxing/pillarboxing functionality is only emulated on the player, the client side. We will see how Google will integrate the newly wide player with the drive towards higher quality video introduced before (read).