I haven't had any problems with Windows 8. To be honest I use it a lot like I used Windows 7. I pretty much never see the much maligned tile interface. And then I benefit from the myriad little improvements and tweaks they've made to other parts of the OS like they always do.
I feel more like I'm using a beefy service pack to Win7.
How to become an "indie game developer": Dye your hair a bright color, take a strategically angled profile pic, create a Tumblr account, fight on Twitter all day, and under NO CIRCUMSTANCES ever create an actual game.