Gold Member Deals of the Week (Monday) - Death Tank (800 points) - Peggle (400 points) - Fable II: See The Future DLC (500 points)
Retail North America (Tuesday) - Karaoke Revolution (w/mic)
Games on Demand (Tuesday) - Lego Indiana Jones: The Original Adventures - Saints Row 2
Rock Band DLC (Tuesday; 160 points per song or 800 for the Petty pack) - Tom Petty & The Heartbreakers: "A Thing About You (live)" - Tom Petty & The Heartbreakers: "American Girl (live)" - Tom Petty & The Heartbreakers: "Even the Losers (live)" - Tom Petty & The Heartbreakers: "Here Comes My Girl (live)" - Tom Petty & The Heartbreakers: "Mary Jane's Last Dance (live)" - Tom Petty & The Heartbreakers: "Refugee (live)" - The Go-Gos: "Our Lips Are Sealed" - Kelly Clarkson: "Miss Independent" - Pink: "Who Knew"
DJ Hero DLC (Tuesday) - David Guetta Mix Pack (price not listed)
Other DLC (Wednesday) - Fallout 3 stuff in the Avatar Marketplace - Borderlands: Zombie Island of Dr. Ned (800 points)
Guitar Hero 5 DLC (Thursday, FREE) - Bunny Knutson: "Lemon Frosting" - Nancy Fullforce: "RockNRola" - An Endless Sporadic: "From the Blue/Point of No Return/T.T.R.T.S." - Dom Liberati: "Love Holds It Down" - Davidicus: "You Really Like Me" - Tony Solis: "Guilty Pleasures"
Lips DLC (Friday) - they're still not telling me what but I bet it will be $2 per song
The more I think about it, the less important backwards compatibility is. Most (though not all) of the people who want to play PS2 game still have a PS2, and it's not hard to find many solutions for switching your setup up back and forth.