Yes, but keep in mind that data is stolen in public wifi sites.
When your cell phone is unlocked, you can use it with any service provider's network. The original service provider will have to unlock the cell phone for you.
You can put any SIM card in an unlocked cell phone.
Unlocked GSM cell phones should work with any provider. You will be able to tell one the sim card is put in the phone.
An unlocked cell phone means that it can be used with any carrier. It does not have to have a contract; however, it can have a phone line on it. (any phone line, not just at&t, verizon, & sprint)
The more commonly-purchased wifi version of the Nexus 7 has you connect to any wifi location.
The pros of buying unlocked cell phones include being able to use it with any provider. The cons include loosing your warranty.
Any cell phone that is unlocked requires a SIM card to work. If you own a Sidekick cell phone that is unlocked you are able to use a carrier other than T-Mobile. For this reason, it will require a SIM card to work.
You cannot use a regular cell phone to either connect to the internet via a wifi hotspot or make voip calls. Just buy another phone which are wifi enabled...
An unlocked cell phone is the kind that you need to purchase. This means that it will be compatible with any telephone provider and gives you more flexibility.
Any Wi-Fi network that shows up on your iPod Touch without a lock symbol next to it is an unlocked router. There are literally thousands of unlocked routers, and all are privately owned, so they cannot be listed.
Most cell phones are manufactured to be used on one specific cellular network. An unlocked cell phone is one which is not tied to any one cellular provider. When a phone is unlocked, it means it can be used on any network. The tricky part is that only the phones with SIM cards can be unlocked. You cannot use an unlocked phone with Verizon Wireless and other non-SIM networks. Currently, T-mobile and Cingular are the two networks in the United States that accept unlocked phones. Be sure to check your network before purchasing an unlocked phone, as they are very expensive and usually not returnable.
To fully activate a Nexus 7, you will need to go to a wifi location to complete the setup. After it is setup, you don't necessarily have to connect to a wifi location again. But, you will miss any necessary updates the device gets on occassion, as well as app updates.