Why in the FAQ? They have an own subsection on the Kickstarter Project Eternity main page called "Rewards" in which every tier is listed with all its benefits in form of some nice graphics. They already updated this graphical list with the new digital tiers. Check it out.
Ah, thank you. Last I had checked the list hadn't been updated. I must admit to being a bit confused that some of the rewards in the lower tiers don't go to the higher ones. Like why does only the $140 tier get the beta key, but none of the above ones do? Doesn't bother me as much since that is the tier I went with, but now I'm not sure if I'll go up to $250 like I was possibly planning to.
I think they need to iron out the visualization of the tiers a bit. The key really should be on every tier above 140, and honestly I can't think of many good reasons that the "digital fun pack" can't be in higher tiers as well. I mean, I understand that they're international, digital replacements for the physical things in the 100/140 tier, but I don't see why someone who owns the physical map shouldn't get a digital version to use as a wallpaper or whatever.