Tired of “dead spots” in your WiFi coverage? How about a wireless Internet connection with crawling performance? hField Technologies has a solution it calls “Wi-Fire,” and the Mac version of its software has recently been overhauled. Wi-Fire is a gadget that plugs into the USB port of a computer and, according to hField, increases the range and speed of WiFi connections. Although the gizmo works with other platforms, like Window and Linux, it has proven to be very popular in the Mac market, maintained hField Marketing Manager Blake Kleintop.