No specific info about version 3.3. Please visit the main page of Split Screen on Mac Informer.
This application expands screens to full screen mode.
It splits video files into smaller pieces and joins scenes into a new file.
Drop-split is a free GUI wrapper application for the BSD command split.
PDF Split & Merge is a free open source tool to split and merge pdf documents.
SP Resize is intended to be used in conjunction with Quicksilver