Why couldnt we format CF cards in something thats not FAT32......
The camera needs to support format, and most only support FAT12/16/32.
SDXC brings with it the potential to use exFAT, a proprietary, licensed, patent encumbered file system, but that addresses the limitations of FAT32, though adding some of it's own. If they (SD Card Association) were smart, and not as easily swayed by Microsoft, they would have used something like ext2. Ext2 has none of the limitations of FAT32 or exFAT, and any manufacturer could use it freely.