All of them don't do anything but play games. All recent carts have near-100% game compatibility, DLDI auto-patching, cheats, skinning, SDHC compatibility, soft reset from game, download play support, etc.
The difference between the lower-cost carts such as the Acekart 2, Edge, or DSTT and the higher-cost carts such as the CycloDS and Acekart RPG is that the lower-cost carts don't have the bells and whistles of the more expensive carts. Bells and whistles includes things like in-game menu (for changing cheats and other settings during gameplay), real-time save (which makes a dump of the memory at any point during the game that can be loaded to restart the game from the exact same point), slowing down the game, etc. If you don't have a use for any of those things, go for one of the lower-cost carts.
-Bri
The only really big special feature would be the real time saving. THat has me very interested.
Then you should get either a Scds1 or a CycloDS Evolution.
Soon I'll have both
QUOTE(Yoshimashin @ Mar 22 2008, 10:58 PM)