Yes, this is true, I walked past Gamestation Nottingham a couple of hours back and a sign outside saying "Squeeze of the Week" has the Wii Console, in white, advertised for £99.00. As far as I know they have plenty of stock, but hurry obviously!
I didn't have my camera with me so I couldn't take a photo of it, but it's 100% true.
(Don't know whether it was new or used)
I'm assuming "Squeeze of the Week" implies it ends tomorrow closing...