As long as it remembers us, yes, it would be us.
An exact copy of a person isn't that person as he doesn't remember him.
But, indeed, if one day we could sense the world from another angle, another place than our own physical body, it would be a revolution.
But perhaps it's not that obvious: perhaps being in 2 different entities (our own body and a device) ,at the same time, is something as impossible as traveling back to the past.
What might be more accessible is the creation of an avatar, a virtual replica of ourselves and educating it as much, as long and as thoroughly as possible to be like us. But the avatar would still be someone else.

Raoul