from the ever-expanding-market-droid dept.
dylanduck writes "Billboards in the UK have been using Bluetooth to beam media clips at passing cellular phones. The system has been dubbed Bluecasting and 17,000 people accepted the ads. When billboards know your name that's when to really worry."
Think of it! With VLSI we can pack 100 ENIACs in 1 sq. cm.!