Hi all, wanted to let you know that I have two Cyclo DS's. I love them, and I love Team Cylops and their forums. Here is the deal, I got my first one in late November. It is from the batch right before the newer black ones that came out. Sometimes, not often, the DS says that it doesn't recognize it. Some guy discovered that the little metal part of the cart that comes in contact with the DS, sometimes doesnt touch it. He made a YouTube video showing how you can fix it (you just open the cart, and put a 4 layer, or something like that, folded up piece of paper in, and close it back up). This makes the metal part stick out a little more I guess. But in my case, all I have to do is take the cart out and put it back in the DS, and just make sure to push it in and back, and the DS recognizes it. Like I said, it only happens once in a blue moon. On top of that, I got a new one, which is white but is the same version as the new black ones, and they specifically fixed that problem, so it's not even an issue anymore. My coworker is the one who first told me about Cyclo, and he has three of them (two for his kids, one for him). He has never had any problems with his. I told my brother's friend about it, and he bought one. He loves his. So don't hesitate to buy one. Just make sure to buy from a reputable dealer, because Team Cyclops no longer will exchange a defective cart, they will refer you to the dealer. Like I said, they did a great job of fixing any potential defects with their new version, but better safe than sorry. I bought both of mine from mod-chip.com. As far as I know, you should get the newest version if you buy from them, even if you choose white. They have good customer service, and ship fast. Same day I think. Let me know if you have any questions!