I am pretty sure your gateway card will get heated up...
Whether how hot it is i have no idea because i could never progress any game too far.
The most i could ever play is 5 minutes. You can touch your SD card and the chip to feel it :>
I had only seen people complaining on the following games:-
-Monster Hunter
-Fire Emblem
-New Super Mario Bros 2
-Metal Gear Solid
-Super Robot Wars
The cause could be their microSD card? no idea...
However, gateway can't deny that their card do have some quality issue.
A seller i spoke to this morning told me that every 100 card there will be a few which is faulty.
My tip is get your seller to test the gateway card before they send it to you.
Refuse to buy if any seller is not willing to test it.
So are the issues with Fire Emblem save related or gameplay freezing related? The other four games I don't really care about, but Fire Emblem is one of the games on my must play list. Another thing I'm curious about is whether most of these faulty cards are coming from the same reseller. Ideally this is a problem only effecting people buying from a certain store or two. I think I might wait until an SD based exploit is released. Then we don't have to worry about the possibility of a faulty card ruining gameplay experiences. Hopefully we get one before the end of the year.