http://www.m3-forum.com/viewtopic.php?t=4936"In answer to the many coders who wish to add support for the G6 and M3 Nintendo DS development units the M3/G6 Team have released their FatLIB v3. Using this development library all the homebrew authors can make use of the G6/M3's filesystem. The package comes with a demo on how to use the FAT32 filesystem along with their customized version of MoonShell. Both of these resources should help developers get started on reading/writing to the cards and making use of the FAT32 filesystem. Of course as we all know FAT32 supports > 2GB - so M3 can now access large SD (mini/micro/normal) and CF cards."
-- from Tehskeen
I've hosted them on my download sites: