It was easy to split up the work because our skill sets were so different. We weren't stepping on each other's feet, and because of the time constraints, we didn't have time to second-guess anything. We used Dropbox and Github to manage our files, and frequently pushed updates to each other.
Dmitri wrote the server and scraped the CrunchBase. I wrote all the Javascript, except for the backend API calls and some setup logic. Adrian and Chris created all of the game mechanics and graphics, our main website, and some sounds that we never ended up using.
We did have some tense moments where Dmitri and I were both editing the Javascript and had conflicts, so we decided to both work on the same screen to stay sane. But everything else was a collaboration towards a shared vision, where we each had very clearly delineated roles.