I was going through the Dahon website and found the following description of their HammerHead's small wheels:
"Small wheels are slightly higher in rolling resistance, but they are also inherently lighter, faster to accelerate, and most importantly, more aerodynamically efficient. Compared to the fastest 700c race bikes, the Hammerhead gives up a bit of speed but oh my, is this bike ever easy to transport."
But the whole premise of Alex Moulton's research is that high pressure small wheel offer less rolling resistance and are more efficient. Not to mention less inertia and less wind resistance.
So, given these two very contradictory positions made by prominent small-wheel bike manufacturers, what's a poor layman folding bike fan supposed to believe?