This is a good move; it is
about time that LH started leveraging this partnership that they created.
It is somewhat unfortunate that it will be similar to the EI deal in that it doesn't really do much for B6 customers - no purchasing on jetblue.com, no TB points, etc. - but hopefully that gets solved with the Sabre implementation. It will also be interesting to see what they do for mileage accrual and redemption for the Miles + More program on the B6 flights.