Alright, you might also call it “adding to rumors around sharepoint 2013 search and FAST features” because until RTM comes out, we might see few things cut or added .

Here are some highlights of the video:
1. Search service is still a service application
2. Configuration options in Central Admin UI are pretty much the same as in SharePoint 2010 search
3. Content sources can be defined on the site and tied to a rendering template
4. Query Builder is a neat feature to create query transformations and preview them before publishing
5. Importing and exporting search configurations is great

Yaroslav Pentsarskyy