Robertwhite (a major UK retailer) published on their website that the Leica MP and MP à la carte production is temporarily halted till early 2012 “due to the discontinuation of an integral component“:
Leica à la carte lets you customize your MP or M7 camera. The standard MP model is currently in stock at B&H, Adorama and you can even get it for the old price of $4,595.95 at Amazon: