Kismet wrote:it's reasonable to believe that any incompatibly with existing carts is probably specific to physical non-Brazil market cartridges.
There are no such incompatibilities. Brazilian cartridges are 100% compatible with US cartridges, including the software.
Much like how PAL and NTSC carts are basically the same thing but run slower on PAL consoles, or PAL-optimized games run faster on NTSC consoles.
PAL-M is 60Hz like NTSC though, so nothing like this is going on for sure.
My current theory is that because of the SD slot, games have to be copied to some sort of internal RAM where programs run from, which means that cartridges too have to be dumped so games can be loaded into this same memory and run from there. This would mean that any real-time interactions with cartridges are off the table, which includes coprocessors, mappers, the Game Genie, and maybe even save memory. Sounds like a significant amount of incompatibility to me.
At any rate, whenever it comes out, someone in BR needs to do a teardown and see what's actually in it.
I'm fairly curious myself, but my expectations are fairly low TBH.