levi
Still fresh, damnit!
Yes, but to be able to mount the eMMC/NAND and the transflash at the same time means Niklaus's theoretical interleaved accesses needs to be coded up and tested. Union mounting works, yes, and is how live CDs work and how the Pandora's PND system mounts appdata and the pnd into the same folder, but in both those cases, the two mount points are wired up to the CPU using discrete buses. The eMMC and the transflash share the same lines as far as I know, and unless I've missed something, interleaving accesses on those lines hasn't been proven to work yet.