I think this is excellent news. I've had excellent coverage so far, but another cell network should make it better. Though I wonder if another mass SIM card change out will be required.
Posted via nexus 6p project FI
If they ever add Verizon, I'm going back to Fi.
I was in northern NH on Sunday, and I was roaming on US Cellular but only on 1x, which I assume is part of Sprint's existing roaming agreement. Data wasn't usable, although I was on top of a mountain so that's likely why. Looking forward to getting US Cellular LTE!
You might try Signal Spy, it has already been updated.
I have both but Signal Spy doesn't seem to switch to USCC. Maybe Fi hasn't actually thrown the switch on it yet. Anyone actually picked up a USCC connection yet?
I was emailing the developer for FiSwitcher and he said he would release the updated version when Fi released their update. That was two days ago but so far nothing new on FiSwitcher.