... yes, but AirTran and Southwest have it too... WRONG!
With WN you have multiple airline partners... rent a car... stay at a hotel... and most importantly, a connected credit card.
FL may have fewer partners but it still has a credit card AND you can redeem 8 'points' for a one-way, instead of waiting for 16 for a round-trip.
So, JetBlue, let's not use the 'we're low cost that's why' excuse. Fix your frequent flyer program and then I might actually fly on one of your flights.
For now, you can keep your DirecTVs and quirky flight attendants... I am willing to fly with the Song witches as long as I get miles