NBC Nightly News with Brian Williams has joined the iPad app fray, releasing a video-centric app via the App Store.

The app allows users to view the entire Nightly News broadcast, individual segments, and exclusive online video, as well as to read Williams’ blog. It also offers transcripts, related slideshows, and top headlines. And users can post videos and comments directly to their Facebook and Twitter accounts via the app.

Anchor and managing editor Williams said:

This app is the equivalent of our entire newsroom in an iPad. Everywhere we go, everything we do is right here. We’re on TV, DVR, the Web, and now the iPad app adds another front that gives Nightly News complete, on-demand portability.