Insomniac today announced that the closed beta for Ratchet & Clank: All 4 One has been launched. Only a select few have received codes,
If you would like to receive a code, Insomniac has stated that they will be giving them away via their twitter, and Facebook page. Amazon.com will also be sending out beta codes to those who have pre-ordered R&C:A4O, as well as those who pre-order between now and September 27.
Incase you haven't had the luck to get your hands on a beta code, Insomniac has also announced that there will be a free downloadable demo of the new Ratchet & Clank, available October 18.
Source: PS Bog