I'll be curious to see if this overrides or conflicts with the screen size options that were already built into Miiverse, eShop, etc.
I believe they said the application-specific options would be removed.
Also, I didn't see it listed, but I bought a game that had an update and it queued both up in the downloads so that I wouldn't have to run the game to get the update, which was welcome. Unfortunately, the background installation feature makes games jittery on occasion... like the GamePad freezes for a split second. Not sure if has something to do with the external HD or not.