From the IGN boards, via CAG:
http://boards.ign.com/Message.aspx?topic=161236949&brd=8269
If you preordered MGS4, there is a bonus disc that includes a code for entering the MGO beta and a few special features.
They were originally scheduled/announced to appear in early April. 77 days to MGS4!
EDIT: Despite previous reports, the Gamestop stores are officially getting their DVD discs on Thursday, April 3rd. They will be calling pre-order holders to remind them to pick it up.
http://boards.ign.com/Message.aspx?topic=161236949&brd=8269
If you preordered MGS4, there is a bonus disc that includes a code for entering the MGO beta and a few special features.
They were originally scheduled/announced to appear in early April. 77 days to MGS4!
EDIT: Despite previous reports, the Gamestop stores are officially getting their DVD discs on Thursday, April 3rd. They will be calling pre-order holders to remind them to pick it up.