I tested it out with a couple games and it seems to work quite well. Saves only take about three seconds and the load time is practically non-existent. I have to say that I'm very impressed with this cart.
http://www.takeforum.com/ndsgbaroms/viewto...orum=ndsgbaroms
http://www.takeforum.com/ndsgbaroms/viewto...orum=ndsgbaroms