So...

Can it N+1 or does it act like goblin swordmaster transformation dual wield?

Hot time is less than an hour away. I'm not quite sure how it works either. I could check once hottime starts.

Treated as dual wielding swords, 6 hit combos...still not that good though :/

Like dual-wielding non-swords non-axes non-blunts.

How does the damage work for Dual Wielding, since its not two separate weapons?

My guess is that it's treated like any two-handed weapon and gets bonuses from that. I can't say for sure but at least Elf players will be happy about this, only to flip table at repairs later (Giant still master race)

Repair is cheap on these, only 6k for 98%? That's much better than my demon weapons and speedy heavy punch champs.
Giant = Easy Mode. To boring to exist.

They feel just like normal dual wield to me. It's nice to have the option after 5 years.

We need to confirm if it uses the skill dual wielding formula. I doubt it, though.

No, it does not receive any benefits for dual wielding at all. No smash bonus, no nothing.