Yes, it's only a demonstration. Even so, Samsung's trial of WiMAX 2 technology that touched speeds of 330Mbps is still impressive.
WiMax 2 - News, Features, and Slideshows
While LTE starts rolling out from major U.S. carriers in 2011, the WiMAX Forum is hoping to have the so-called WiMAX 2 standard up and ready to go by the start of 2012.
Intel late on Sunday said it was collaborating with companies including Samsung and Motorola to develop the next generation of WiMax mobile broadband technology, which will provide a speed boost in 4G wireless data transfers.