There is a location at work where I have been with all my previous phones. Every one of them, except the Galaxy Nexus, would lose network coverage when holding the phone normally to type a text or email or such. I couldn't get the Galaxy Nexus to lose coverage at work at all.
But I can't say the same for the SGS2, Sensation, and One X.
I just think the Galaxy Nexus has exceptionally good mobile reception, and everything else is just normal.