I have mainly been shooting RAW with my X-Pro1 lately largely because of improved RAW support by LR 4.4. But I tested again (did this already with my earlier X-Pro1) in-camera B&Ws and this time exclusively in 1:1 format. Very cool indeed. I have adjusted highlight tones to +1, shadow tones in +2, and sharpening to +1. These settings increase contrast quite a much and give also additional punch to sharpening. Square format is very interesting one for the compositions. When doing this I am not cropping in LR at all and also otherwise use only very minimal adjustments. For example, I am not so worried about clipped highlights or shadow areas (of course I try to get the right exposure). It seems that little bit of a clipping give that certain wanted character for the shots. This approach may seem to be very limiting but actually I find it very nice approach. It gives more space to breathe. It is not limiting me at all. It frees my mind.
When shooting using the approach mentioned above led me to think cameras. This could be very dangerous thing to happen, I know. But anyways. I would be very happy with a very limiting camera. For example, a digital camera with a fixed prime lens having a B&W-only sensor. I know there is Leica Monochrom but it is way too expensive (and it uses interchangeable lenses which too are way too expensive for me). I would like to go one or two steps further from the Monochrom when speaking about limiting factors. Yes, B&W only but fixed prime lens and fixed image format (e.g. 1:1). Yes, just crazy. But I feel that kind of a camera less limiting than those with huge amount of customization. Just take the camera in your hands, compose, expose, and shoot.