• $349 USD for current WA7 owners (the S/N of your unit is required to receive this discount)
I'm pretty sure that the point above only applies to current WA7 owners. Which means that if you don't already have a WA7 right now, you can't get that deal.
EDIT: Maybe they should clarify that "current" means "WA7 owner as of (or before) 4/21/14"