There is no info in the docs about dual wielding, seems like a pretty important mechanic to have some info somewhere.
Although personally I'm mostly interested in claw skills on my assassin as that's what i'm playing...
Some of the questions that we should try to answer and document:
1. Do certain skills hit with the main weapon only (so for example, on my clawsin, 2nd claw is only stat stick?)
2. Do certain skills hit with both weapons at the same time?
3. Do certain skills alternate weapons?