Game Informer's print preview of Broken Age has been out for a while but it has only just been made available online.
It's a good long read, but if you're determined to go into the game knowing nothing at all, it may be best to steer clear - it does go into some details of the early plot of the game. In fact, it reveals more than has even been available to backers so far, though nothing I would regard as a big spoiler. To me, reading it recalled poring over those old LucasArts previews in the 1990s, trying to glean as much information as possible because we were so excited about this new thing. I've got a good feeling about this one.
If you want to get a good feeling too,Source: Game Informer