I don't know about the Christmas store, but it's available at more stores than the Emporium. I got mine at Mickey's Star Traders in Tomorrowland last Sunday.
The throw at Epcot it gorgeous. It sounds like the one being described earlier in the thread that is available at HS. It's a little bigger than the castle throw and has Mickey and Minnie sitting by the fireplace with a snowman peeking in the window. I got 2 of those, I just couldn't resist!
I also got the holiday tote bag at Everything Pop.
I also got the lithographs that were described earlier in the thread. I ate at the Garden Grill and they gave me a voucher for them. I had to pick them up at the World of
Disney store information desk. Lots of people had the vouchers. I'm sure they were coming from more places than the Garden Grill though. The lithographs are great! I am framing mine and hanging them in my dining room!