You have too options in terms of things that require more RAM: EZFlash 3in1 for DS Phat and DSlites. Supercard DSTwo for all DS and DSi models. Now, the Supercard DSTwo can't magically run anything that requires more RAM like the Opera Browser or anything, but it can do most functions that normally require an EZ Flash3in1 on older DS models such as a GBA emulator, a better SNES emulator, etc.