Yesterday, Google rolled out a small 1MB update for its Nexus 7 tablet that adds Google Wallet app. The search engine giant shed some more light on this update and confirmed that it does adds Google Wallet app. So, if you are carrying this thing with you, just tap and make the payment with your tablet.
Google Wallet allows you to make payment without taking out your credit card. So, now you grab a burger at Mc Donalds and see if you are able to make a payment without a connection. Why? Because the Wallet app work using NFC feature not via Wi-Fi or by using a cellular connection (which is not present on Nexus 7 anyway). Learn more about google wallet here.
Also check out the camera app for the Nexus 7. Also, did you know that Nexus 7 can be used by fully functional offline GPS navigation system?