source(Chinese): http://laoyaoba.com/ss6/html/54/n-505754.html?url_type=39&object_type=&pos=1 it says: Microsoft Taiwan manager indicates recent high demands of pre-order causes out of stock. mainland China is also facing out of stock. supply chain manufacturers are celebrating their stock exchange going up. the manager also predicts surface pro 3 will have 13 million units sale in the following one year!!!