And OSX users can't read exFAT volumes - the portable option for large files/drives.
That is as per your usual posting habits a garbage post. Nice plug though for MS.
As per wikipedia:
The first SDXCs being released are governed by an SD 3.0 specification (which also still specifies FAT32 and thus lower capacities), whereas higher capacity and faster SDXCs are expected to follow an SD 4.0 specification, which is due to be released in spring of 2010.(...) The SDcard association selected Microsoft's proprietary exFAT file system in the official SDXC specification;[32][33][34] however, as with SD and SDHC, it is still a plain block device and thus arbitrary partitioning and other filesystems can be used, such as FAT32, NTFS, ext2, etc.
You can easily format in ext2 which has widely available drivers for both OS X and Windows and be done with it.