i think he just made it available to the general public, i have it sitting in a box on my desk waiting to put in my 1G
http://www.zeitronix.com
the zt-2 wideband is a wideband O2 (bosch cheap sensor), EGT, boost, and one additional input datalogger with optional LCD display, warnings, etc
the original zeitronix wideband uses a fast-response LED array for wideband O2 only, no egt/boost/datalogging/etc. If you already have your other gauges, get this, everyone that uses it says the fast-response LEDs are the only way to go, you can easily see momentary lean/rich spikes and it has a nice cool blue LED for stoichometric, with dif colors going lean/rich, and higher resolution on the lean side