Originally Posted by rootSU
They're stored in an SQlite database
/data/data/com.android.providers.telephony/databases/mmssms.db in the sms table.
Thanks! i did google about it, but have no clue why none of the messaging apps are picking this location up. I didn't touch the /data partition, just the system.
edit: just opened it with sqlite and I am only seeing the new messages in there. This is very strange...