Funny, I just bought my iPad 6 days ago and what was announced this morning... Well- I don't know about rushing out and dropping another several hundred for the iPad 2, but I have a 14 day refund/exchange through Best Buy so it only makes sense to me to trade up come March 11th.
Got mine for my birthday at the end of January at Sam's Club. They have a 90 day return policy, so I plan on exchanging it before the 90 days run out in late April.
I bought mine at Target too in Feb, so have the 90 day return.
So when will they get to the stores I wonder?
I guess take it back when it does come and they give you a target card, just turn around and buy the IPad 2.
I have heard Walmart, Target, Best Buy and Sam's will have it on launch day. I may run by Sam's that day if I have time. If not, it will most likely be the following week. I have until almost the end of April to be within my 90 days.