Ubuntu 13.04, Raring Ringtail, has been released.
Time to do a direct upgrade from my 12.10 installation.
The upgrade process was quite simple. I upgraded some packages normally using Update Manager, and when everything was up to date:
After rebooting, the only thing I had to do was going to "Software & Updates" and in the "Other Software" tab re-add my 3rd party PPAs.
Unity seems faster and everything is running smooth.