The latest Google Wallet update, which prepared it for the EVO 4G LTE, has made many Galaxy Nexus users confused. If you remember, there was a security hole on rooted devices where a person using root could access your cards stored in Google Wallet. Google responded by making rooted devices unsupported by Wallet, though thankfully Google still let rooted users use the app.
Now, the most contradicting thing happens. Google Wallet asks for root. Your first though would be, “Well it asks for root to verify whether your device is supported or not.” Well it verified just fine before. And the strangest thing is that even if you grant it root access, it works the same way as it does if you deny it root access. The only plausible theory is that the root access will be used to make your credentials safer somehow, though nothing about that was stated in the changelog. Google has been silent about this for now, so we really don’t know what’s going on.