Perch was written up in August by the big tech pubs (so I won’t repeat). But the short is Perch is a mirror-mirror on the wall idea about mounting an iPad on a wall which allows you to connect to remote colleagues by simply walking up to it. Kinda of Star Trek’ish. Certainly cool. Definitely interesting and unique.
You could imagine this spun up using WebRTC and voice recognition have this running on your laptop. Check out the well done video on their home page which explains the concept.