I got this happy news from an agency in Korea. The EPs got approved just a few hours ago in Korea (as of current time of posting this Mon, 3/26/12 7AM). I know some of the EPs got approved earlier for other agencies. Here is the content of the mail:
"Happy News to share with you and all the too much anxious families!
Finally, the long-awaited EPs have been issued as of late afternoon today. ..."