Install was easy, a lot better than previous versions. To see all the features you need to activate all the extensions.

Videos don't seems to work. I've only tested uploading FLVs. They will upload but nothing will play.

Chat, Notifications, Status updates, works great and Articles allow you to post up images this time around.

The Search drop down is throwing errors.

There are other issues, but I'm pretty impressed with version 7! Can't wait until the final release.