I almost really like the DMG model, if only the pink buttons were the same black as the others. I'm leaning toward the other model because of it but I'm not a huge fan Famicom red either.
Looks like the Micro SD Card is built in right above the cartridge port instead of using a K-Card. If so I hope they ship a plastic cover for the port since I wouldn't be using it and wouldn't want it open either. Edit: Actually the Chinese site shows a K-Card adapter.
Really though whether I get it all comes down to price. The current Revo K101 which started around $90 dollars Canadian, slowly increased to $156 which to me is just too expensive. If this comes out around $100 I'll probably get one.
I wonder if the internal flash cart will have save states or will it just be stock, doesn't matter much since GBA is usually pretty good about saving though, still there are some password or get to the save point games so it would be nice.
Also... Turbo Button? Maybe a fix for the NES/GB/GBC/SMS/PC Engine emulators so they can use more computing power than it could send in GBA mode if that makes sense?