Ok, just to let you know, this is my first purchase for these things. (I've done a lot of research on one night.. I'm so tired.) http://www.kicktrading.ca/product_info.php...&products_id=70 http://www.kicktrading.ca/product_info.php...&products_id=57 I put a "vs" in the title because any other words would have not fit. I can clearly see the difference. One uses mini-SD cards and the other uses original SD cards. What I want to know is there any other differences like size, weight, and functionality (the SD slot location, etc.) Also I would like to know which M3 cart you bought (between these two) when both of them were released. Thankyou. edit-Can you do a FlashMe with a Passcard3?