Ooh, very cool! I remember using a very experimental emulator at some point a couple years back and it was sadly too broken to be usable (likely resource constraints?). Will have to dig up the old DS Lite and a flashcart to try this one out.
Just be aware that it sometimes requires some per game tinkering with the four different GBARunner "flavors" to get things to work, and some games have annoying problems regardless of the flavor you pick. Overall it works well enough that it's a very convenient thing to have on your DS though :)
