Not a review, but just thoughts:

I think it's a bit overhyped and I'm slightly disappointed with it. A few things here and there which I'm pretty sure they can fix with firmware updates, but I'm not sure if it's only me or if owners also feel this way about the camera. Fuji did it right in most aspects (form, ergonomics, features), but it can still be better. Seeing as how it's unique and one of a kind in the market, there's definitely plenty of room for improvement.

It's sluggish. It's not as nearly as responsive as a DSLR. I have a Fuji point and shoot which is pretty good, but I never liked its sluggish controls. Accessing the menus and navigating around is a bit of a drag. They can definitely make it smoother.

I don't know if it's just my memory card, but write speeds are excruciatingly slow. If I set review mode to continuous (or anything other than "off"), I can only take ONE frame, and have to wait for it to be written to the card before I can snap the next. If I set it to off I can take more frames, but the buffer is small and it is unable to display images quickly. JPEG only is fine, but with a CMOS sensor and image quality touted to rival DSLRs, I'd ideally want to shoot in RAW.

Manual focus is painful. This is one aspect they'll definitely have to improve if they want to market it well to rangefinder lovers. It's slow and sluggish. The focus by wire lags and it isn't as responsive as I'd like it to be. If the focus was anything like Canon's 85mm f/1.2 I'd be contented, but it's really slow. This is one thing they definitely have to improve on.

There are minor glitches I've experienced, which I should be able to reproduce if I try again. Things like the info display in the viewfinder suddenly disappearing if I access certain menus and do stuff - which prompts a restart of the camera to fix. Not a major problem, but a little annoying. Probably can be fixed with a firmware update.

The control wheel feels flimsy. I don't like it.

The RAW button should allow you to switch modes permanently, not just for one frame.

The electronic viewfinder is bad, I'm not sure of its specs but it's got a slow refresh time and looks pixelated. The back LCD is good, though. Pictures look accurate.

The continuous burst mode is disappointing. What it does is take the the frames in continuous succession (5fps if I remember correctly); yes, but you can't actually shoot it like you would with a DSLR. You have to shoot those 5 frames at once, not shoot one, recompose, shoot another. Once you release your finger off the shutter button it starts saving your pictures. Pretty bad.

I don't shoot video so I haven't bothered with the video mode, but I do know you can't manual focus while recording video.

And once again, the controls are sluggish. You can't change settings really quickly, because if you access a setting; for example ISO, the camera doesn't stay in ISO if you don't start selecting (unlike a DSLR). If you don't select anything it just exits the ISO setting in a few seconds automatically. Just another problem with Fuji's user interface.
I don't believe I have to list its merits here. Anyone who's interested in getting one for themselves would already know. Image quality is impressive, noise control is really good. That CMOS sensor and prime lens work well in tandem.
It's also very, very silent - quieter than a Leica M9. I would turn all sounds off, the clicks and fake shutter sounds are silly.
Overall, I may have been overly critical in my evaluation of the X100, but I still like it. If Fuji fixes most of the aforementioned issues in a firmware update, it'd be perfect. If you can get past the little quirks the X100 is a joy to own and use. Price is steep, but then again the marketing worked - Fuji definitely saw the room for a rangefinder-styled digital camera and thus can command such a price for one.