Got mine at Toys R Us
Walmart, Target, K-Mart, EB, Best Buy, MediaPlay ... all were either sold out or hadn't received their stock yet.
Dejected, I took my kid to Toys R Us. While browsing around their video games section the stock boy brought out 20 copies.
The 'happy dance' soon followed. Stayed up 'till 3 AM playing it. Went to work at 6.