According to a recent radio interview that was leaked online, it appears that the rumored PS3 Tales of title, rumored to be named Tales of Unitia, has been confirmed with a release date, alongside another PSP Tales title.
According to the interview, the next Tales series title will be exclusive to the PS3 in Japan and will be released sometime during Fall 2010, which would mean that much of the game should have already been completed by now, which isn't that huge of a stretch considering the "Team Symphonia" part of Namco Tales Studio's last game was back in 2008 and most of the main team likely didn't take part in the PS3 port of Tales of Vesperia.
In addition, the interview also stated that an unnamed PSP Tales title would be be released sometime in the future, although no specific information was mentioned.
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