Nice and informative devlog.
* Ditch the drag and drop from the inventory. Right click puts gun to the right hand, left click to left, shift + click drops it. I've learned from a few hours of Minecraft (without the shift shortcut) that too much of drag and drop can ruin even the greatest game...
Drag and drop is a lot more intuitive. You'll also be dragging items from your inventory onto things in the game world, for example to give items to NPCs or open doors with keycards. But don't worry, you won't be doing anywhere near as much inventory management as you do in Minecraft.
* I don't see what you gain from the slots for each hand, except if you plan to make some kind of dual shooting etc. Now it seems to be just another inventory slot. Of course, putting it behind a hotkey would make it useful.
You can have a ranged weapon in one hand and a melee weapon in the other. Also, if you get shot in one arm, you'll probably want to switch your weapon to the other hand.
* Just a visual thing, but right now everyone's walking around dressed in skintight latex and leather. If you'd throw in some more baggy clothes, maybe a trench coat or a hoodie, the npc's would stand out from one and other. Like TF2 and friends showed us, silhouette is pretty important for graphics, and these guys all have the same silhouette right now.
There'll be more and more varied clothing for the full game. I'm using a limited selection for the demo, since making the clothing subsprites takes quite a bit of time (there's about 24,000 subsprites for the character looks currently in the game).
By the way, this clothing system you have here just screams for customizable avatar. I'd love to go all Deadpool on this thing... I mean, there's nothing like a good old lawsuit from Marvel, right?
The game probably won't have a customizable avatar. Beyond the issue of cutscene images relying on a specific avatar look, I'll also be making unique animations for the player's character. If the look of the player's character was to be customizable, I'd have to make clothing subsprites for all the clothing items in the game just for these special player animations, instead of just making them for the player's clothes.
I missed the Deadpool reference?