Personally I think carrying around the PC boxes with you would make the games way too easy. You could heal any time you wanted which would definitely take away some of the challenge from the games, and they're already fairly easy, imo. It'd make potions and other healing items completely redundant outside of battle. I'm not a fan of that idea. :(
It's possible. It looked like there was only one Pokemon Center on the island they showed, and if that's the case on other islands we go to (if that's what they end up doing) then we'll probably need something like that,especially on bigger islands.
They could easily make it so your Pokemon don't heal when deposited.
I would speculate that they could
make the PC somewhat location-aware. This means that while your PC might in fact be portable there may be some areas of the map where "reception" is considered to be too "poor" to transmit Pokemon. Your own portable PC might be allowed to carry perhaps
1 Box of Pokemon worth of pokemon that you
could swap out somehow. This box would basically be a box you selected while in town or at a Pokemon Center where you could "link up" properly to the Network and use the larger Pokemon Storage System properly.
Pokemon deposited or withdrawn to/from this box would not be healed. This is because theoretically you're carrying a laptop with a capability to
Only Store Poke Balls and would lack the necessary equipment, a healing system, to heal them.
1Your laptop would also only be able to carry a limited number of Pokemon; so that'd quickly make things a little less overpowered.
It'd be a simple mechanic
where some areas of the map, possibly everywhere except when you are inside a Pokemon Center, simply restrict your PC abilities. You
may be able to have
"Read-Only" or
"Offline" access;
which is to say you'd be able to open your PC anytime to view the pokemon in all of your boxes and view their summaries and stats, but not be allowed to withdraw them. This is where that 1 Box idea would fit in; theoretically.
1
This box would be a standard box of 30 Pokemon and captured pokemon could just go into there until you arrive at the Pokemon Center where you could then rearrange the pokemon and boxes. This one portable box could have a variety of restrictions upon it; the primary one being that it
may not heal deposited Pokemon, or may not heal Pokemon deposited from your party. This single box may even be Deposit Only in nature; meaning you could free up one slot in your party for wildly caught Pokemon. Additional mechanics to limit things may include
simulating a battery; where PC operations consume power from a finite meter; and when you run out of power; the only thing that you can do is deposit wildly caught pokemon when your party is full. You may only be able to access your PC in certain situations; perhaps being unable to do so inside caves, or while standing in grass where wild pokemon lurk about. Possibly, your PC may only be accessible inside a building. They could push some pieces of realism onto the portable PC idea to dampen it's use to make it less game breaking.
In an extreme version of this sort of restriction, which they could do for simplicity's sake, you'd only be allowed to use your "laptop PC" inside the Pokemon Center itself by completing some action, like sitting at a table proved in the Center with a
Power and Pokemon Storage System Network Uplink
If you are In a City or At a Pokemon Center however; the PC could "Come alive" and be a lot more useful. Perhaps it now receives a clear "signal" so you can now conveniently access the Pokemon Storage System without any limitations you might have anywhere else in the overworld. Full PC box and Management would be enabled and you'd be able to Deposit/Withdraw/Move any and all Pokemon from Box-to-Box, Party-to-Box or Box-to-Party and edit markings, change wallpapers, name your boxes, Manage held items on each Pokemon, and more. While more realism-based limitations like the portable device having perhaps a battery that needs charging; which you can only do at a Pokemon Center, at home or somewhere that allows you to charge it; may not actually be disabled...you might find more reason to visit the Pokemon Center if your Pokemon need healing or you need to charge up the PC.
It's entirely possible that you may be required to progress through the main storyline before getting a "Laptop PC" gifted to you by the Pokemon Professor. That would mean you'd still have to play through with all the normal restrictions until you've proven your mettle as a trainer and are now setting out to search the islands to complete your Pokedex.