Can I put Newsstand into a folder?
Looks like there is a way after all (even if it's most probably a bug because it renders Newsstand useless):

From The Coding Massacre:


Take two apps and go to create a folder
The second the apps are in the folder and it’s doing the folder creation animation, drag Newsstand into the folder
As long as you’re quick enough Newsstand will go into the folder


If you open Newsstand while it’s in a folder your springboard will crash.