Thanks, let me know what you think!
I'm a bit conflicted over how pallets and bots should interact. One option could be that bots cannot transport pallets, and only belts/trains can use them. Basically a "buff" to belts/trains and neutral for bots.
The second option (which is what happens in this mod) is that bots could transport pallets just fine -- but would naturally need an unloader at the destination. Any pre-existing bot factories would need to completely redesign their blueprints to fit in the new assemblers for unloading if they want to use pallets, which adds kind of a cool new wrinkle of its own I think!