I own 2 ds's. One ds (phat) and another DS Lite. I was wondering if an Edge Flashcart with Pokemon Diamond (or any other game that can link up by wifi via router /close range but pokemon is a great example for what i am trying to say) be able to link up with a regular Pokemon game? Also will an Edge flashcart and another flashcart be able to link up? EX. Like 2 ds's with edge flashcarts or a ds's with an edge flashcart and another with an R4.
The answer is yes - probably I have M3 and have been linked to 7 others on mario Kart For the best chance of it working use the same region Rom and if an option for download play is included in the cart - use it. Sorry never tried WiFi - only local DS to DS
i have a wifi nintendo wfc i know the dstt does what you ask, so i guess the others will do the same (the games control the software for the link via nintendo hardware the carts just host the game to run)