Most impressive, but you are not a Jedi yet.
Sounds like the smart move for the budget-conscious is to order the 4GB of RAM with the stock 64GB SSD and hope for the third party/aftermarket to catch up. If this is even possible - the best I can envision is being able to buy a larger capacity SSD directly from Apple and/or eBay. But, folks like RunCore, NewerTech, and Other World Computing have pulled a few rabbits out of the hat over the years.
I didn't realize the backlit keyboard had gone away on this model, and I'm not sure how I feel about that. On one hand, I don't really look at the keyboard when I'm typing, but it's very helpful for the once in a while when I do.
Wonder what Rev. 2 of the 11" will change or add? There seems to be some wiggle room with SSD size, battery capacity, and the backlit keyboard (which, given that the current rating is for 5 hours, would have probably seriously eaten in to this).
Definitely a good start for Apple's "netbook," but Rev 2 next year will likely be the refinement that this could use.