Is there a list of devices that have been confirmed to not work?
I just got a new meter (Colorado, USA) and it is an itron “Gen 5 Riva” (model: G5R1 and “TYPE R2SID”). The brocure is here and the fcc spec is here. It says things like 2.4GHz and the OS is Linux 
(I like Linux, but that tells me it may be getting too smart). It also has the AMI 900MHz band, so maybe it is doing the mesh networking and the AMI broadcast. My guess is that it could be a config option for the installer.
It would be nice if someone had already done all the legwork to be able to report that, no, it doesn’t work. Instead, I am hoping it is a new kind of meter that no one has tried. I ordered and SDR anyway. Maybe I’ll find a use for it if this doesn’t work.