As eSchool News reported yesterday, Apple Inc.'s much-ballyhooed iPhone was unveiled this week after 30 months and millions of dollars in top-secret development. But the sleek new iPod-cellular phone combination could wind up costing the company a lot more.

Cisco Systems Inc., the world's largest networking equipment maker, sued Apple in San Francisco federal court on Jan. 10, claiming that Apple's iPhone violates its trademark.

Cisco is asking the court to forbid Apple from using the name "iPhone," which Cisco has held a trademark on since 2000 and used to brand a line of


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