The new iPad includes a tethering feature called Wi-Fi Personal Hotspot which lets you share your iPad's 4G LTE or HSPA+ Internet connection with your laptop or any other device that can connect to a Wi-Fi network. Wi-Fi Personal Hotspot depends on your carrier, however, so while some carriers like Verizon and Rogers offer it, AT&T currently does not. (Insert pitchforks and torches here.) Even when it's offered, however, Wi-Fi Personal Hotspot may not be enabled by default and it's not obvious how to turn it on.
If you're not sure whether or not Wi-Fi Personal Hotspot is enabled, it's easy to tell.
If Wi-Fi Personal Hotspot isn't enabled, you'll have to go digging for it.
Once you've turned it on for the first time, you'll get Personal Hotspot in the top level Settings list and won't have to dig for it again.
Apple provides a default password for your Wi-Fi Personal Hotspot but you can easily change it if you like.
You can use your Wi-Fi Personal Hotspot to share your iPad LTE or HSPA+/EVDO connection with any device that has Wi-Fi, including Mac, Windows, and Linux laptop and desktop PCs, handheld and console gaming machines, smartphones on slower networks, and more.
Just keep a close eye on your data usage because it can go fast!
First, start up Wi-Fi Personal Hotspot on your iPad
Next, go to the device you want to connect.
Different carriers allow different numbers of connections, typically from 5 to 8 total.