A 15" model is currently in manufacturing and expected to become available at some time in March. A 17" should be available in the May-June time frame.
The 2GB of RAM was determined to be plenty sufficient for any AdvancedHMI application. But if you plan to run other software, more RAM may help. It uses standard laptop memory, so it can be upgraded in the field or you can make a special request to have more RAM installed before shipping.
The prototypes were all tested with a 128Gb SSD, but just weeks after the production models were ready, the particular SSD model (Samsung Pro 850) at that capacity was no longer available, so we had to go up to the 256Gb.
Windows 10 64 bit is a default image, but you can make special requests for other operating systems.