You create a folder by dropping one icon on top of another, which brings up a dimpled background that looks like the Multitasking dock—hidden under your selected wallpaper, which has been sliced in two pieces and shifted up and/or down to make temporary room for the icons in the folder. … Choose an individual account and you see all of the mailboxes—outgoing, inbox, drafts and any additional folders. An optional threaded view has been added to show multiple messages that are part of the same conversation, each indicated with a double chevron arrow with the number of threaded messages alongside it.
I sent this iCard to Apple Insider, one of my regular stops on the web, early on this week. I was surprised to see them put it up on the site. Who know.