Saw these Wii Minis at my local Wal-Mart in Fort Worth, TX. There was no price label for them, but I'm sure they were merchandised. I'm thinking about getting one purely because a Wii Remote Plus and Mario Kart Wii alone would cost me 85 dollars. 15 bucks more for a brand new console and a nunchuck to boot.
Also, first post after years of lurking.
EDIT: Turns out this was formally announced a week ago. Sorry. Move along.