It’s just not physically possible to be in two locations at once. We don’t have the technology for that to happen just yet. However, that doesn’t mean we’re not constantly trying to find ways to make it happen.
The Double is basically a Segway that you put an iPad on top of, but its functionality is a lot more impressive than that. This will allow you to be in any part of the world without actually having to travel there. You would have an iPad hooked up in whatever location you wanted to see and speak to, and then you would need one with you to do the video chat aspect. This will let you adjust the height, move any direction, and have conversations over long distances. This would be best used for business, but I can see how it would be useful for families who spend a lot of time apart as well. Although, the price tag being at around $2,000 makes it pretty difficult for anyone to have one.