Instead of whipping out your notebook and booting it up just to find an available WiFi signal, why not take the easier route of using your iPhone or other WiFi-capable portable device? Well there is an even easier way now with the WiFi Signal Finder Pen. All you need to do is press the switch and let the LED light flash, where it will then pick up any WiFi signal in the vicinity. There is a working range of up to 50m outdoors and 30m indoors. Too bad it doesnât pick up draft-N networks, nor