Hmm. I do recal this being in another thread. I do not know of the implementation a year agon--I wasn\'t here, and I find nothing of it.
I do know that when I started this year, there were threads about shields being a waste of time because they don\'t work. However, since then, there was and update that made shields effective--not for attack, but for defense. Of course, I\'d assume--as with everything else--that one would need skill in the use of shields in order for them to be anything more than extra weight. this is what the update Iread was about, that shield skill was now activated and so were the shields, and armor. (Supposedly, before the only armor skill that worked was light armor.)
We do attack with both hands, and we can defend with weapons--if our skill with that weapon is sufficient and so is our strenght to carry it.
Of course, changes are always happening, and where you get your updates seems to also affect what you are working with in client. Therefore, not being a developer, I could be w-w-w-wrong.