evi1d33d : You are right. Clean rom just means that it does that patching before launching it. On gba-devices that wasnt possible (at least that fast) because all slot1 adresses had to be changed to slot2 adresses. But slot one is a serial slot and slot 2 not...So it would have been much effort for the nds. But since slot1 solucions are coming into fashion that autopatching becomed possible within a few seconds. But download and play needs signed roms (or flashme on the reciving nds) and that sendable part has to be unpatched as well (afaik of course)
Well anyway, it seems like slot1-microsd will be often seen in the future. And upgradable skins will become a new standard too. Nice development. But kinda hard for NinjaDS(first well-working autopatching device) and DS-Xtreme (first skinable device). "Their" ideas are about to be copied. I could bet m3 follows very soon, ez did that already before sc and ninjapass we already know about.
