We need some kind of liquid and gas dictionary or something. We need more support for moders like djoslin, creator of finite liquid, that he make his mod forge compatible. Because even if it will be forge compatible there is no use for custom liquids in other mods... Also there should be one power system that all different mods will share, like in this new api http://www.minecraftforum.net/topic/1276496-125-universal-electricity-adding-realistic-electricity-to-minecraft/page__hl__universal
Sorry for my bad English, I hope there is no problem to understand me.