Saw that, too. I did the next cheapest shipping option, which is scheduled for Monday. Sometimes, shipping estimates of Sundays are just pushed to Mondays from my experience with other online retailers.
Thanks for the info. I'll be going to Target and then Sam's Club (8am then 10am) Sunday morning. Sam's Club didn't take pre-orders, so I am hoping that they'll have some. Does anyone have any thoughts about that strategy?