Was just going to ask the same thing; don't know why this isn't out there. Most of these have conversions of (2 cups of batter will fit into so many 8" cake pans) but no help with converting your recipe to end up with that volume of batter.
In that vein, something simple that doesn't seem to be out there: a recipe scaler that converts to actual measurements (is able to round to the nearest real fraction of a teaspoon, is able to convert small fractions of a cup to teaspoons and tablespoons) I'd also like something that converts eggs or other whole ingredients into teaspoon-tablespoon measurements (often when you scale down a recipe, you get it down to the point where you've got an egg, and then you can't go any smaller)
Another thing: something that will convert cut-and-pasted recipes into a standardized format. So, for instance, if you input a Joy of Cooking style recipe which has dialogue interspersed between the ingredients list, it will find all the ingredients, make them into a bulleted list, and move the dialogue to a paragraph-style section at the bottom. It would need to be able to scan for numbers written out in English (for instance, to know that one egg is the same as 1 egg) and would need to judge when something is an ingredient (one hardboiled egg, minced) or when something is a part of the instructions (mince one hardboiled egg, and add it to the mixture.) (Or, I suppose, both, as the case may be)
Right now, I'm using Nutritiondata.com to find out the nutritional information of my food desert recipes (I'm very slowly working on compiling them into some kind of resource) but the process is incredibly long, and I've found that their information isn't always accurate. Maybe some way you can OCR scan a nutrition label into your computer and it recognizes the information, does the math for you according to your ingredients list, and imports it into your recipe?
Terrific project, BTW; I hope you get the job.