Oracle relased Oracle Database 12c (Total Cloud Database) Yet to have the newer look.
The message and download sites as given by Mike.
But not released for Windows Platforms.
Oracle Database 12c is available for download now!
By Mike Dietrich on Jun 25, 2013
Good things come to those who wait ... finally ... Oracle Database 12c (Oracle 12.1.0.1) is available for download from the Oracle Software Cloud (formerly know as eDelivery) and OTN (Oracle Tech Network) for Linux 64bit (Solaris will follow within the next few hours):
- eDelivery:
Oracle Database 12c (12.1.0.1) for Linux 64bit
Oracle Database 12c (12.1.0.1) for Solaris SPARC64
Oracle Database 12c (12.1.0.1) for Solaris x86
. - OTN:
Oracle Database 12c (12.1.0.1) for Linux 64bit
Oracle Database 12c (12.1.0.1) for Solaris SPARC64
Oracle Database 12c (12.1.0.1) for Solaris x86
.
And yes, it will be supported on Oracle Exadata and SuperCluster as well 
. 
And with the release of Oracle Database 12c we are offering you also our
with (sorry, we've did it again!) over 500 slides covering:
- The brand new Parallel Upgrade including new Pre/Post-Upgrade-Fix-Ups
- The new Full Transportable Export/Import Feature
- Obviously Oracle Multitenant, which got talked about a lot as Pluggable Databases or Container Databases before
- Plenty of new parameters, cool and very helpful features and much more ...
- Download the slides Upgrade, Migrate and Consolidate to Oracle Database 12c
-Mike
