After they released the 300 and 600, it took a long time before stores like Best Buy actually displayed them. Best Buy had them in stock for a couple of weeks before they displayed them. So I have to agree that getting one by Xmas from a retailer is pretty slim. You might be able to get one through the Sony Store if they release them in time.

Another thing to consider is that if they cannot give a definate time frame for release, then they are probably encountering problems with suppliers, software, hardware, or something. That alone will make me extra cautious about ordering one before seeing what actual users have to say.