Here are the four things mentioned by Larry Ellison at his key note at OOW2012.
- Oracle will provide cloud  services on all three tiers: SaaS, PaaS and IaaS.
- Oracle Owned and Managed Private Data cloud
- Oracle Database 12c
- Exadata x3 Database In Memory Machine
You can watch out 3 min video highlight of his keynote ..
You can read the full coverage here