Almost all TV Everywhere programs are available on all devices (PC, laptop, iPad, iPhone, Android phone). This depends largely on the individual TV networks and some of them have not made their programs available on all devices. Visit the iPhone or iPad App Store and search by the network name for available applications.
There is no limit to the number of devices you can use. However, you are limited by the networks on how many you can use at the same time.
It might. Check your data plan before you start viewing TV Everywhere on a smartphone or wireless network. TV Everywhere programs transmit a lot of data. That can become expensive if you have a limited data plan. Please know that we have no way of knowing when you have exceeded your data plan. You are responsible for all of the charges made by your mobile carrier.
TV Everywhere works anywhere you can receive an Internet signal or have a wireless connection: inside your house, office, shopping mall, hotel, airport, vacation home, etc. Wired connections and in-home WiFi will provide the best quality. The quality of TV Everywhere signals while roaming (airports, stores, etc.) will vary depending on the strength of the signal. Be extra careful when you travel, especially outside the US. Data roaming charges may apply and they can be very expensive.