The iPod Touch is a great option to use in conjunction with the DJI Phantom 3!  I like how it’s less expensive than many other tablet/smartphone options and it tends to be less impacted by over-heating issues.  It is smaller than many other options but that’s great for travel in my opinion.  Also, if you fly line-of-sight like I do to be safe, the device is only used for quick visual camera alignment checks.  I also don’t have to place my iPhone 6 Plus in airplane mode before flying!  It’s great!