This, this, and more this.
Originally Posted by
Peligro911 Use a airport express .. Don't need Internet to make it work for presentations
Also if destination has Internet just plug in a cat 5 from the Internet source and you can share it to all your own devices
Simplest If you do need internet at places that do have internet then the hotspot is the best option
Depends on what plan your on for what the cost would be
Not so much with this, as unless you have 3G/4G+tethering on your account. Even with tethering, I wouldn't advise this, as the ATV can use some of your data, to talk to Apple servers and such, and you don't need it to.
Originally Posted by
Quintus I use the iPad's hotspot. Connect the atv to the iPad's hotspot and you are ready to go every time as long as your iPad has cellular service.