(adsbygoogle = window.adsbygoogle || []).push({}); Here's a list of what the Playstation Store is have available in today's update...

Confirmed:
Rochard
Castlevania: Harmony of Despair
Resident Evil: Code Veronica X HD
Tom Clancy’s Splinter Cell Trilogy
mercury Hg
Battlefield 3 Beta (29th) (I think, MoH buyers get it today...)
Tiger Woods PGA Tour 12 (Trial)
New PS minis
Rock Band DLC – Slipknot Pack

Source & Credits :
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When does it update?

hmm not too sure but usually around 6 EST (rough guess)

Around 10pm In the UK, if your Using your US Account.