I've been messing around with the idea of visual novels for a while now - the medium typically gets associated with dodgy japanese dating-sim/porn titles, but it strikes me as a good medium for telling those little side-stories that aren't worth drawing whole comics around; the overhead is smaller, especially if you want to produce more than one with the same characters or setting.
So, in that vein, I've started drawing sprites for Precession characters so I can put together a multiple-path ('choose-your-own-adventure'-style) VN covering some of the bits before and during the last few chapters. This week's vote incentive is the Rena-standing-looking-neutral sprite, which will obviously never get used since it's obsoleted by the Rena-standing-around-looking-frantically-neurotic one. ;-)
Anyway, if you're interested in creating visual novels in English, you could do a lot worse than look at the Ren'Py engine. It's pretty good.