Hardware :: What About SDXC Memory Cards?

Yes i read about Tuxera and their solution for embedded system even on linux but don't exist some project free?In the 3.0 specification, the electronic interface of SDHC and SDXC cards is the same. The decision to label cards with a capacity greater than 32GB as SDXC and to use a different filesystem is due solely to the limitations in creating larger filesystems in certain versions of Microsoft Windows. Other operating systems, such as Linux, make no distinction between SDHC and SDXC cards, as long as the card contains a compatible filesystem.So essentially is possible use this memory card as mass storage but if you want use it for manage data taken using photo camera or video camera (that use exFat, the propetary file system of microsoft), don't exist any open solution for linux?