Looks like J&R has the 47" and 55" in stock. I am getting the old 47lw5600 delivered from Amazon today, and will stop by J&R on my way to work tomorrow morning to compare and see if it is worth the price difference.
EDIT:So far Im not too impressed to return my 47LW5600 for this model. The sales person said they only come with a magic remote, no regular remote (which seems odd). The magic remote had a scroll wheel on it and a few extra buttons, I only had about 3 minutes to play with it. The smart TV function definitely felt smoother and everything seemed to load faster than the LW5600. I noticed a few new features like the dual view in the menu. Nothing else stood out from memory.
The buttons on the TV were hard to find, physical buttons hiding in the rear.