Cisco in 1996 bought out InfoGear who had a product called the iPhone in 2006. Apparently Apple was well aware of this and had plans to use iPhone for the past 5 years. Apple asked for permission from Cisco however Cisco has not approved yet and they went out to market the product anyway.
““We’ve owned the iPhone trademark for years. Apple has acknowledged this by coming to us repeatedly over the last five years to acquire the right to use the trademark,” said Cisco spokesman John Noh.”

Looks like troubles for Apple, the term iPhone might not live to see it’s launch date in June.