After the update, the set-top boxes will have the same full streaming capabilities plus the ability to stream HDX movies.
You will also get access to Twitter and Facebook, Rotten Tomatoes movie scores, as well as Vudu apps like Pandora, Stock Tracker, and Picasa.
The downside, well for me because I live in the boonies, is that the you need at least a 4.5Mbps internet connection.