Hey Rurouni can you link to some info? I checked Cyanogen and it isn't in the list of supported devices (unless I had a brain fart and looked under tablets or something). There is a sony Z, but no Z1, and maybe that means no Z1s. It seems a tad niche to me. XDA developer forum for it is less lively than my current phone which was dead. I am very tempted as the camera seems nice, though Mize does have a pretty glowing review of the G2. I just rode my bike home in the rain so the waterproof bit on the sony is a nice feature as well.
yeah, the waterproof is uber cool (I cycle with my phone in a ziplock bag). My main Sony Z(1) negative was that AT&T (where I have my grandfathered unlimited data) didn't have a subsidized phone and I wasn't willing to pay full price. Also, since the G2 was basically an N5 I figured it would get newer OS updates faster and, hence, faster CM10/11 ports.
It does look like there is an active CM10/11 port going for the Z1 though...