Now how is this going to save you a few bucks? Well, for the exact same amount of storage capacity, microSDHCs offer a cheaper solution to Pro Duos -- even if you factor in the price of the adapter. But hang on right there. There's no price yet on the adapter. However, a little rummaging finds the adapter listed on Amazon Japan for ?990. That's roughly US$9.70. If that estimate holds true for North American consumers, then there's a lot of savings to be had.