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Originally posted by: Mario
Is it possible they can add this extra stuff on the DS through a GBA cart?
That was my guess as well, way back before the DS even came out (see
thread) - and I still think it's the most likely.
Picture it this way... you pick up this "online kit" (or whatever you want to call it) for the DS. I comes with a GBA cart and a headset.
You load both into the DS. Now when you start up.... you pick the GBA slot not the DS game.
From this app on the GBA cart you can set up all kinds of wireless settings IF YOU WANT. Knowing nintendo they probably want to keep it simple but they had better have something to handle those folks that have to enter WEP keys/etc... similar to what the PSP has currently if you power up and go to wireless settings (although you could do even better). You should be also able to tell it to just dump out of infrastructure mode and go "ad-hoc" as most people like to call it.
Now that's not it.
This handy cart also has your matchmaking service, to find other players - locally or online, depending on how your set up in the last step. Once you find your opponents and agree on a game, your asked to insert that game into the DS slot if it's not already in there. Then, your playing via wireless! Enjoy! A key combo could even bring up a interface (provided by the GBA device) to let the user adjust, for example, voice settings - like muting certian ppl you no longer want to hear as they are spamming the voice channel.
Since this is a GBA cart - it's writable... Thus it could store all your settings, your game list, etc.... it could also be "upgraded" by the DS itself, say at a hotspot.
If your really hopeful, Nintendo has already released the standard API this cart will use and third parties have it already ....
And if you really, really, want to take a leap of faith, they're doing the same thing for a DS card, so that you can do the exact thing as above, except for GBA games.