Bayer Didget blood glucose monitoring system does double-duty as a DS gameUntil we reach the time when tattoos make checking blood glucose levels cool, we're going to need another way to keep kids with diabetes healthy. And hey, kids love videogames, right? Bayer's Didget is based on the company's Contour glucose meter, but instead of connecting by USB it's shaped like a Game Boy cartridge, enabling it to slot into a Nintendo DS or DS Lite. When kids upload their scores to a custom game (the less than thrilling sounding Knock 'Em Downs: World Fair) they'll unlock new characters and items, but there's one fatal flaw in this plan: the system necessarily isn't compatible with the DSi (or its XL brother) and we're guessing the big cartridge slot isn't due for a comeback in the 3DS. In other words, this meter is on a fast-track to obsolescence.