wyldeone writes "The San Fransico Chronicle reports that the BART subway system has been completely outfitted with cells to allow cellphone usage everywhere on the line. The network has been paid for entirely by Nextel, who leased out the lines to the other carriers." From the article: "Rae said BART and the wireless companies know some riders will try to make calls over the din as BART roars and screeches through tunnels. But most of the business, he said, will be from people using wireless devices to read and send e-mail or browse the Internet. 'You could use your Blackberry to take care of all your e-mail on your way to work,' he said. 'But the trains are really too noisy (underground) to have an intelligent conversation.'"