Yeah, MangaGamer also has a couple non-adult releases, if you guys haven't checked them out already. Both are high profile: 07th Expansion's Higurashi no Naku Koro ni and Overdrive's Kira Kira (All-Ages version).
Kira Kira features some outstanding character writing, IMO.
I'm not a big fan of MangaGamer. I'm glad they're doing what they're doing, but they're a bit overpriced and their translations aren't always the best. Especially considering they're download only (which also puts me off). Kira Kira is very good and Higurashi is pretty good too. The rest of their games are the usual crap though. Except for Da Capo and at least they did Shuffle! (which is still a bit meh really).
Putting aside amateur translations why doesn't any company at leas try and get rights to the good stuff? Fate/Stay Night, Chaos;Head (though with JAST partnering Nitro+ things are looking good.), Kara no Shoujo, Air, Kanon, Clannad, Little Busters!, ef- a fairy tale of the two, Eden*, Kimi ga Nozomu Eien, etc etc. I could go on and on. Though mind you, most of them HAVE had amateur patches done, so not all hope is lost.