Please note that in the below I've only had experience of the non-charging Joycon grip that comes with the console:
At the moment, if you have your Joycon L and Joycon R as two individual controllers, e.g. held sideways for multiplayer, then insert them into the grip, the Switch doesn't "know" that you've done so. Each controller still has its own controller number, and the console doesn't know that you're now using them together and not horizontally. You have to go into Joycon settings and press L+R to reassign them.
I know that the non-charging grip is basically hollow inside. It seems to me that it would have been nice if there was some simple electronics inside the grip (it could be as simple as just joining one or two pins of Joycon L to another one or two pins of Joycon R), which would allow each Joycon to talk to each other and find out that they must be in a grip and tell the console appropriately, reassign the controller numbers etc. The console could also on the main menu show icons of the controllers in a grip rather than two separate held in each hand, which would be a nice little touch. It could also tell games that certain motion control features aren't possible, i.e. ones where you have to move one Joycon separately to the other.
As I say, I know the non-charging grip doesn't have any electronics in it to make this possible. But what about the charging grip, which I do not have? Does that work as described above?
At the moment, if you have your Joycon L and Joycon R as two individual controllers, e.g. held sideways for multiplayer, then insert them into the grip, the Switch doesn't "know" that you've done so. Each controller still has its own controller number, and the console doesn't know that you're now using them together and not horizontally. You have to go into Joycon settings and press L+R to reassign them.
I know that the non-charging grip is basically hollow inside. It seems to me that it would have been nice if there was some simple electronics inside the grip (it could be as simple as just joining one or two pins of Joycon L to another one or two pins of Joycon R), which would allow each Joycon to talk to each other and find out that they must be in a grip and tell the console appropriately, reassign the controller numbers etc. The console could also on the main menu show icons of the controllers in a grip rather than two separate held in each hand, which would be a nice little touch. It could also tell games that certain motion control features aren't possible, i.e. ones where you have to move one Joycon separately to the other.
As I say, I know the non-charging grip doesn't have any electronics in it to make this possible. But what about the charging grip, which I do not have? Does that work as described above?