Wow! can anyone verify?
The info is from the official German forum:
http://www.psxtools.de/thread.php?threadid=58178&page=8&sid=ce67eb80967e50ccddd57afd9d1af22f
Fifth post. xxMergyxx is the posters name.
EDIT: Roughly translated: The guy contacted the gateway team, which has resulted in making this forum the official German support forum. He asked them about the multirom/NAND save update and they answered that the relase would be before christmas.