Huh... Not sure if people have already posted this or not.
This Is Why Your Verizon Galaxy Nexus (Or Other 4G LTE VZW Phone) Is Losing Its Data Connection
The jist is that apparently the data drops are in fact Verizon's fault. They decided to use a new way to authenticate whether or not we should have data that's the same between 3g and 4g but they are failing to authenticate and kicking us off. Some phones handle a bad authentication more quickly, and some just go into battery saving mode and stop so you never recover until you reboot/re-authenticate.
So I guess we can stop being angry at Moto and start being angry at Verizon.