It seems SG isn't the only game coming out on the PS.
Sentimental Graffiti -Yakusoku- is also coming out on the PS.
This is a digital novel of the short story that ran in
Dengeki G's Magazine.
In the current G's Magazine, there is an interview section with
the seiyuu, and it has Okada Junko as Taeko..
(the seiyuu pics seem recent, not the old ones reused)

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Hitoshi Doi                                               Toshi Nibunnoichi
half a UFO catcher doll, half a cel          801 tactical training squadron
http://www.win.ne.jp/~doi/                                    doi@win.ne.jp