Taken from NeoGaf so take it with a grain of sale
The 3 PSP games unannounced to be playable at TGS were:
- Resistance Retribution
- Diamond and the sound of a gunshot
- Enkaku Sousa: Sana e no 23 Hiai
The 9 PS3 games unannounced to be playable at TGS were:
- Gran Turismo 5 Prologue Spec III
- Demon's Souls
- Killzone 2
- Wipeout HD
- Mr.PAIN
- Linger in Shadows
- Flower
- Rag Doll Kung Fu
- Gomibako -Garbage Can-
Poster also quoted official sony site as source, this looks about right, announced doesn't equal new afterall, maybe something got lost in the translation.
I am dissapointed by the lack of new announcement, but more pissed off at the misinformation than anything else.