Hugo808: Just had a go on one in a local shop, very nice in all respects except the autofocus is way too slow. Bit silly of Fuji not to have that rather important aspect sorted out as it renders it pointless for what I'd buy it for (weddings) so I'll stick to my SLRs, shame as it's a lovely toy with obviously good IQ.
Yes, I've shot a lot of weddings, and I've done it with cameras like the Olympus E1 or the first iteration of the Canon 5D. Do they have faster AF... maybe, but I doubt the difference is great. Was I ever in trouble because of it, nope.
In any case, if you are a serious wedding photog, you will never carry only one camera with you. You can use a Fuji Xpro1 perfectly for the majority of the shots, and carry a faster specked AF camera for the rest (if you're really afraid of missing the shot).
Don't get me wrong for what I'm about to say, but saying that the AF speed renders it pointless for weddings is in good truth a pointless comment.
If you have said it was pointless for sports and fast moving subjects, I'd probably have to agree, but unless you have a lot of runaway brides in your clients, I don't see why wouldn't this camera deliver.
If all the cameras behind it, including the first batch of digital cameras (Nikon D1X, Nikon D70, Canon 10D, Olympus E1, etc.), manual focus cameras (Leicas perhaps), and all vintage of the sort did it, I'm pretty sure this one will do.
Now, if you don't have the skills to pull it out that's another story. Don't blame it on the camera.