What are some good demos for ps3 ?

May be...

Metal Gear Solid 4

Metal Gear Online

Guitar Hero Aerosmith

Motorstorm PR

Skate 2 (Jan 15)

LotR Conquest

MLB 08: The Show

Skate.

Warhawk

Resistance Fall of Man

Bioshock

Mirror's Edge



Those are all good.

Lord of the Rings Conquest

Motorstorm Pacific Rift

Bioshock (the demo blew me away and I just had to get the game after)

Tom Clancys End War

LotR Conquest is pretty fun and its also playable online i liked it so much i pre-ordered a copy

Dark Sector, Mirror's Edge, Smackdown Vs Raw 2009, Bio-Shock

Just try any game to your liking.



I downloaded most of the sports, MGS4 and Valkria Chronicles.

Skate and Mirrors Edge lasted me a while actually. Great games too.

Warhawk

Metal Gear Solid 4

Metal Gear Online

Resistance Fall of Man

Motorstorm Pacific Rift

etc..