Nintendo are on the update rampage with a new Nintendo Channel released over in Japan with a new interface/refined features.
Users can now vary the quality for video streaming - standard or high quality, decided when first starting the new version of the channel. You can also create a list of favourite games you're interested in, and see a more detailed set of records for your collection. Searching is said to be improved, filtering games by genre, publisher etc.
Worldwide updates are likely to follow soon. Thanks to Joystiq.