"AT&T may be considering its wireless future, but its former mobile arm, AT&T Wireless - soon to be part of Cingular Wireless - is also showing strong interest in WiMAX. Its chief technology officer, Rod Nelson, has joined the board of Aperto Networks, a privately held vendor with advanced capabilities in the higher layer, software technology for WiMAX networks ... Nelson's role at AT&T Wireless is to define its future network architecture and directions and plan for next generation high speed IP services. His relationship with Aperto indicates a trend that should accelerate - for cellular operators, despite the potential conflict between WiMAX and their 3G investments, to recognize it as a way to increase broadband data revenues, to stave off new competitors such as Craig McCaw's Clearwire, and to lay the foundation stones for all-IP '4G'."Well, it is at least good to know that we are making some progress towards 4G. All we can currently do is drool over the nifty devices that come out from Japan, hmm, perhaps we will soon be able to use some of them. :)