Hey, guys. Yesterday i came across an iPhone-controlled Spying tank online. According to their video instruction, it seems that the tank is able to make a WiFi hotspot, which can be detected by iPhone. When you access to the hotspot, your iPhone is connected to the tank. Then you enter an i-Spy toys App to remote control the tank and take photos (http://bit.ly/PD1Fsg). I wonder if that was real WiFi or something else. What's the difference between that "WiFi" and the WiFi made by wireless router? Waiting for a simple question, cause i'm not some geek.