The multiplayer beta for Halo: Reach was announced in San Francisco today during Microsoft’s X10 event. At this stage only owners of Halo 3: ODST will have access to the beta that will begin will officially begin on May 3, 2010. ODST owners can access the beta via the ODST game disc. No word yet whether others can get to play the beta but we’ll let you know if more details surface. If you do have a copy of Halo 3: ODST then hold on to your copy till May 3 so you can play the beta of the much anticipated title of Halo: Reach.