What I thought ;). I’m using a (slowly-dying) Xperia mini at the moment, which I bought because it is just that.
Re: Cases: I was also considering Feuerwear. I like the whole concept and the design as well, but their cases do add bulk, which isn’t exactly what I want for for this behemoth of a phone. So I’ve been looking at (tough) paper sleeves and narrowed them down to paprcuts and mapbagrag. The big Paprcuts sleeve is just about the size of the FP2, just a wee bit smaller on one side. Might be a fit, might have to squeeze, might be too tight. I think once I’m over the sticker shock I’ll probably go for a custom-sized Mapbagrag. A custom Mapbagrag “open” is €37 (just mentioning this because their EN website seems to be broken; I can order a custom “open” model on the DE website just fine, on the EN website this option appears to be missing).