Hey - just wanted to chime in (very late) and say that I agree with the number approach to the date on the cover.
I'm Australian, so my date order is different, but I just think it looks better despite the possible confusion.
You're talking about microchips inserted in brains and it's a techno thriller set in the future. It makes no sense to me to have to spell out "March" on the cover.
Putting this on my "to get" list on Smashwords.
Reviews only happen if the reading happens though.
Regards
Caleb