I think Fuji hit it out of the park on this one. Here's the summary and preview link from dpreview:
16MP X-Trans CMOS sensor
ISO 200-6400, 100 - 25600 expanded (JPEG only)
2.36M dot OLED electronic viewfinder
Same control layout as X-Pro1, including top-plate shutter speed and exposure compensation dials
2.8" 460k dot LCD
Built-in pop-up flash
Full HD movie recording with built-in stereo microphone
2.5mm stereo microphone socket, compatibility with wired remote control units (via USB port)
Available in silver or black
Fujifilm X-E1 hands-on preview: Digital Photography Review
I like an awful lot about this camera. They even have a cable shutter capability via the USB port.
The major thing i don't like - see above on the 100-25600 expanded is limited to Jpeg only. What's that all about. Is that because some of the software out there will not work with the non-Bayer 6x6 photosite design? I don't know but that seems strange to me. jpegs just don't respond to pp like RAW do and i like tweaking my photos - sometimes a lot.
This camera is why I would prefer that Pentax develop a smaller mount design - not as small as the Q, but smaller than the K.
I think Fuji is going to do really well with this camera - excellent design with that one quirk on the ISO expanded range.
Price with the new 18-55 zoom, ois, is $1399. This is a contradiction to the folks that say you can't sell an APS camera in that range, anymore. Hmmm...