I too wondered about wheel size. Most likely an attempt to make the bike less 'clown-like' from a marketing perspective.

Then again, one of the things l like about this design is the apparently long (effective) top-tube. If you are going to make the bike that long anyway, why not use a slightly larger wheel?

Another big question I have is how solid will the folding fork stay after 5 or so years of folding / unfolding?