Twice daily service coming on JetBlue for LAS-SFO starting in January. Announced about 12 hours after VX launched JFK-FLL and BOS-LAS seasonal winter service. Tit-for-tat is silly but I suppose it could be useful to customers this time around. It will require changing some of the schedules around, however, as currently there are no planes on the ground in LAS long enough to make the trip and flight times strongly suggest that these will start in LAS, not SFO (45 minute turns at the SFO end). Then again, the flight times are all even numbers suggesting that they may have just made something up to stick in the press release and they'll figure out the details later.