It's good news you can never have to much choice of lenses. I know zooms are there thing but i hope they come out with some cheap primes.
Its good to see more manufacturers support the new lens formats. We can expect Tamron to produce some good inexpensive convenience zooms. I think that the Sony E mount and Samsung NX systems are in more need of third party support than the micro four thirds system but the support of MFT must be a vote of confidence for Olympus and Panasonic.
samyang have announced a AF nex lense for 2013. So things are looking good for the 3rd party lens market.