One is a PDA organizer that has a date calendar, and also doubles as a calculator. Using Sakura as an OS to M3i Zero brings a couple of added features. Both the hardware and software of M3i Zero can be upgraded, so it can support Nintendo system further update. It offers good playing speed and high quality performance. It not only play Nintendo DS games as other flashcard, but also do well in multi-media play. A solution would be to stick with DS games as the flash cart is more compatible with DSi's. Using the old Touchpad can be a resort, but that will sacrifice some attractive GUI. Homebrew compatibility can be improved as M3 Sakura cannot really patch all games. A handy feature that not many flash cards offer. Backing up your saves is also possible by getting to the NDS settings menu. Real-time save lets you save your game anywhere, anytime in the game. The soft reset function lets you turn your DS back to the main menu without having to turn your console off and then on. It supports up to 32GB of Micro SD or SDHCs to accommodate tons of games, music and videos. Cheats can be set to off, always on, on/off, and instant codes. The Application Software tab keeps track of the games you played recently and acts as a shortcut so you can go back to your game in no time. The M3i Zero claimed to have a 100% game compatibility, and so far it has not let us down. But if you want a nicer-looking interface, M3Sakura has better GUI copy. If you want to get game fixes earlier, the better choice would be Touchpad.
Two OS can be loaded to M3i Zero, either the old Touchpad OS or the recently released M3Sakura.