Hey guys! Abe here. I'm the developer of FilmLab, and a longtime RFF reader and occasional participant. With FilmLab, I'm hoping to make a tool that can be useful to a lot of film shooters, even if it doesn't replace their dedicated film scanner.
To give a quick overview of what I'm trying to do: Under the hood of FilmLab is a software engine that can automatically detect and perspective-correct film frames, and convert negatives to positives. In the first version of the app, this engine is used three ways: to give a live preview of negatives as positives, to capture and convert film images with your smartphone camera, and to process files you've created with a separate camera and lens. It's far from complete, but the results so far are promising. I'm launching a Kickstarter campaign this week this week which will hopefully let me spend more time working on the project.
I'm happy to answer any questions!