Delta Airlines reportedly testing new seating, cheaper tickets

Delta Airlines is reportedly testing a new, low fare seating option.  

The Orlando Sentinel reports that the "basic economy" seats are about 12 to 20 dollars cheaper than regular economy seats.  

The basic economy seats are non-refundable and no cancellations or changes are allowed after the tickets are purchased.  

Passengers who choose a basic economy ticket will not be able to select their seats.  
The seats are assigned by a computer.  

Passengers can still earn frequent flier miles on the cheaper tickets.