When there are no retail releases, I'm not going to bother posting these until the Thursday Virtual Console/WiiWare announcement. The Rock Band songs will always be the same as the Xbox 360 version.
Retail (Tuesday) - nothing
Rock Band 3 DLC (Tuesday; * has optional Pro Guitar/Bass for an extra $1) - Creedence Clearwater Revival – Have You Ever Seen the Rain? * - Creedence Clearwater Revival – Lodi - Creedence Clearwater Revival – Susie Q
WiiWare (Thursday) - Newton vs. The Horde (500 pts)
In addition, PS3 has added an MLB.TV app. You can subscribe to get all (out of market) games, or you can use your existing subscription if you've signed up on another device. quick comparison: $100 for SD MLB.TV $120 for HD MLB.