Walmart expanding drone deliveries — exponentially.  More stores, more states, more goods  Four new cities join the list for customers to choose in Tampa and Orlando, Dallas and Phoenix.  For $3.99- the amenity now an option for anyone who lives within one mile of these (and more) participating stores.  Thousands of eligible products are included, under 10 pounds, for deliver in as little as 30 minutes.  Walmart says they plan to continue expansion of their drone deliveries nationwide –