Shaders. Great for applying wonderful visual effects, and they provide some really great results. The fact I have to use HLSL instead of C#? A bit weak from my point of view.
I'm fully aware of the technical reasons why, but it's still a bit of a ballache. Especially as I have to go through all this rigamarole as the 360 and HDTVs display colours with much greater saturation than a LCD monitor. In a game where the mood depends greatly on watercoloured artwork, I can't have the thing looking like Tellytubbies.
Progress towards a press-demoable build has been good today, with everything from the farm to the church in the starting map. Not that that means much to you, of course.