In case you may not know, I was the one that designed the 4E4 game Zirconia 2 , which took 4th place in the contest.
Overall, 4E4 has been a lot of fun and a learning experience (yes, the last 20% actually does take 80% of the time). I really didn't expect to place this high in the contest; I was kinda intimidated by all the 3D FPS entries and maybe mine would get overlooked cause it was "only" 2D. It's also the first time I've made a complete game using C++; my previous games were mostly using VB. I'll say more on my choice of languages/engines next entry.
I'm currently in the "in between" phase regarding my next project(s). I'm a bit burned out from 4E4 and would like to take on a smaller project. There is a plan for version 1.1 of Zirconia 2 however, no really big changes- mostly bug fixes and a few new cards.
What is going to follow in subsequent entries is a postmortem of my 4E4 game (not all at once though).