This has all the look and feel of a 35mm viewfinder camera (not SLR).
What's the features that make it so desirable?
Does if record light plane data so that focus can be determined later?
http://www.lytro.com/
The Lytro is very intriguing. They not only thought outside the box, they got a whole new box on that one.

Fuji's sensors are known for their incredible low light performance. This camera is supposed to have a new sensor that is APS-C in size but outperforms 35mm sensors. I know, a lot of that's marketing hype, but if it's true... It also has this hybrid viewfinder that is both optical and electronic. kind of like a HUD in a fighter. You have a choice of seeing through the optical viewfinder like a Leica, and the camera canl overlay exposure information and data, or you can switch to electronic viewfinder mode and see what the sensor is seeing live (exposure, white balance, focus, etc.). Cool trick!
I really like the rangefinder form factor. Great performance in a smaller package, plus the old-school look is sexy as Hell IMO. I don't shoot sports, so I don't need an SLR (they usually focus faster and allow for longer focal length lenses). Plus, people tend to forget that Fuji is a really good optics company. They've been making lenses for Hasselblad for years (shhhhh, it's a secret).
Small camera, big sensor, fast prime lenses, great low light performance with really high dynamic range. What's not to like?