Now available @ Play when you preorder the game on PS3 or 360.
'Pre-ordering Medal Of Honor from Play.com will give fans the opportunity to join the Medal Of Honor multiplayer BETA when it goes live on July 5th 2010. The BETA will take place between July 5th and July 17th - access codes will be emailed on July 5th. All pre-orders through Play.com will entitle customers to an access code. BETA access details are subject to change at any time'
I ordered a Ps3 copy which I will swiftly cancel once I receive the beta code :)