Kind of bummed about this. I picked up the Wii version for $10 at Walmart's Black Friday and was excited until I saw the Gamestop deal. Since I found out my parents were getting my son an XBox 360 and one of my local Gamestops had the 360 version and not the Wii version, I put one on hold. When I got there, they said someone else had already picked up my reservation. I was pretty furious with them, as my son had been wanting the Super Hero Squad uDraw game for a while, and this was my chance to get it cheap. Plus I realized it was easier to share the pictures he drew from the Xbox than it was the Wii (which I knew he would want to do for his grandparents). I went ahead and gave him the Wii version uDraw, which he was pretty excited about. He played it once and put it away, but it's mostly because he's been obsessed with his XBox and Skylanders game he got. I'm sure he would play it some more if he had it for the XBox. For $6, I would have used one of my rewards certificates to pick it up, but it's not available for shipping and not available in any stores in my area :(.
I do see the PS3 version availabe in my area. I'm debating on buying it and exchanging it elsewhere. I'm pretty sure I saw them at Walmart.