I've just checked Canada,US and Australian Microsoft online stores (and local stores in Australia), and it appears you can't get a Surface 2 Pro with anything but the 128gb configuration.
Is it only a short period of time before those sell-out? Did Microsoft build small quantities to prevent another massive write-off? Or are they actually flying off the shelves?
http://www.microsoftstore.com/store/msusa/en_US/html/pbPage.PDPS/productID.286866600
Or is there a Surface 3 coming within the next few months (doubtful)?