While reading through the Wii Shop Q + A, thewiire.com came across the following paragraph:
Most likely this feature will be used to fix minor bugs and graphical glitches in the game, but what about the possibility of adding online support for some titles?The "Update" button indicates there are enhancements for the game. If you have already downloaded the game, you may select "Update" to download the enhancements free of charge. Please note, downloading the update may impact the saved game data.
Mario Kart or Goldeneye online anyone?