I would say that there is no big news here. The lens is nice the camera offers small improvements over the J1. I really want to see in one year from now how the mirrorless market will be. My impression is that Canon EOS-M is a much stronger competitor than the Nikon 1 system.
Meantime an interesting info comes from Sony. They will announce a cheaper NEX-7 model, the NEX-6. Could be the competitor of the E-PL5 if this camera will have an integrated viewfinder!