"In addition they are going to have pressure put on them by traditional retailers....providing same day service. For many people same day service...will be good enough.
http://finance.yahoo.com/news/this-traditional-retailer-might-beat-..."

"The reason for selecting a VTOL design is understandable, and it's great that they seem to have solved the vertical/horizontal flight envelop transition. But in the end, power density/weight, and thrust/payload will be what limits it's current…"