Finally, all my SMS (about 10,000+ now) kills my Phone Memory (C:\).
Note: Not the RAM or Memory Card (E:\)
236kB Free Memory left only
But actual 10k+ SMS Messages takes up 5MB only.
I can't open or run anything without insufficient memory, please delete message errors.

After I delete 4k+ SMS, I free up 17MB. Guess Nokia FAT for very small files are not efficient. Just like PC FAT16.
Delete another 3k+, Free memory = 15MB.
Still deleting now...

Added on April 9, 2009, 2:26 pmOk, finish deleting 90%+ SMS
I free up 46MB.

Added on April 9, 2009, 2:36 pmWait. I just realised Messaging includes the Email boxes
I got 3 mailboxes with 200-300 emails there
Clearing again...
