Not really... Packet interception maybe, but not a key logger. And if it's going to someones laptop they'd also need to spoof the SSID (possibly the MAC address too) of of the real Wi-Fi and mask the real ones SSID broadcasting (not easy at all). You should read up on how theses things work before you post things like this.
You need to read up, too. I have a friend who demonstrated with his laptop connect to his "black box" which he would not comment on.