- A wider, 16:9, video player
- Additional content including music, movies, TV, news, sports, and more
- The max file size is now 150 megabytes (Google and YouTube are 100MB, I believe)
- Added networks, playlists, and related videos to your selected video
- You can now share playlists by embeddable playlists under your embeddable video; an example can be seen over here
- More detailed profile pages
For a full list of changes, see the Yahoo Video Blog announcement.