HP reveals tiny, tiny wireless chip discusses a new chip designed by Hewlett-Packard engineers. The article has one important feature, a visual demonstration of the tiny size of the chip. It is a device between 2mm and 4mm square, which can hold between 256kb and 4mb of memory, plus an antenna, plus wireless communications capability of transmitting 10mb/second. The visual demonstration shows it circled by pencils, demonstrating the chip is slightly larger than the size of a pencil tip.
That's tiny.