PS3 testing was planned to start alongside beta 2, but I'm guessing that's been delayed.
This is the most recent info on the beta schedule:
In the first phase, we have a version that will incorporate feedback from our alpha testers who will, hopefully available this week. At first, it will resemble the alpha test phase, in the sense that each test session lasted four hours.
But if things go well, the beta 2 will follow shortly, which will allow players to access the game 24 hours 24. Then, hopefully, by early August, we will open the beta test phase 3 which will remain operational until the game launches
JeuxOnLine: It will be open?
Tanaka: No, closed.
JeuxOnLine: There will be no open beta?
Tanaka: After Phase 3 of the beta, we have an open beta will be available just before the release of the game, but we can not guarantee this last phase opened.
I haven't heard any explanation of what Phase 3 means.