The offer seems to have been made to consumers — presumably those in North America — who have purchased products through the Apple Store before. Some readers report receiving a differently worded but identical offer through the Online Apple Store for Education as well. In either case, Apple encourages users who have received the offer to buy new hardware and software.
The e-mail offers folks an opportunity to save $50 on any order of $999 or more. Purchases must be made by September 7.