What tech feels like living in the future?

Just a couple that are still impressive every time I use them. Share your own!

  • Gmail undo send has saved me so many times, and it's just wonderfully implemented. If only Sparrow had it...
  • AirPlay content to TV screens: it's so simple, and yet still feels like the future. Just tap to send a YouTube cat video to the TV from my iPhone? Just perfectly elegant.
  • Google Reverse Image Search: Forget + and everything else. I use this all the time, and it's so helpful for finding the original artists for all those unsourced images on tumblr, or digging back to the source of other photos online.