I put froyo on my phone and now it says sprint on the lock screen and when I pull the notification bar down. I remember with my HTC Touch and before that, with my xv6700, there was a way to tweak this; I could change it to say nothing, or anything. I changed to say my name.
I highly doubt that the radio changes this. I know that people would think it does, because when your start your phone, it says nothing, and then when you get a signal it changes to Verizon Wireless. But with the new rom, why didn't the signal automatically change it back from saying Sprint to Verizon Wireless. Currently it says Sprint on my VZW phone.
Again, I must emphasize I have been able to change this on my two previous phones. just wanted to see if anyone found out how to do this on the droid ERIS. Thanks!