Several large retailers of non-carrier-contract phones (even a very conservative one that usually lowers prices last) here today halfed (!) the price of all WP7 phones. Stuff that cost 600€+ yesterday, now sells for 300€ or less (htc & sammy).
I spoke to one manager he said they just don't sell at all. He wont restock any for the forseeable future. Way to go MS..