I'm now at the point where I'm just tightening up and finalizing how gameplay is going to be, with just the first level built. Once I have that, I will be working on the first boss fight and then moving on to the other levels.
However - my 3rd child is going to be born imminently, so I don't suppose I'll be having much time for development over the next few months. I'll post something as soon as I'm back on sort of a regular schedule. And don't worry - the game's official release date of "sometime before Duke Nukem Forever" will still be met!
BUT STAY TUNED - There's a big Pixel Whirled announcement coming in late March!