Finally, demand is firming from a broad array of users, from cellphone manufacturers to personal and notebook computers to consumer electronic products.

Patrick Hinojosa, the chief technology officer of Panda Software, said cellphone manufacturers should be looking for vulnerabilities in their software before the code is installed on phones.

Because cellphone manufacturers use a wide variety of proprietary plugs, only a few of the most popular cellphones could be connected to the earliest docking stations, introduced last year.

But Nokia of Finland, the world's biggest cellphone manufacturer, cast doubt on that assumption when it said sales would contract through the first half of the year.

That said, we have a neutral rating on all the big cellphone manufacturers - Nokia, Motorola and L. M. Ericsson.

In the smart phone market, PalmOne's most serious competitors are the cellphone manufacturers.

So far none of the major cellphone manufacturers have plans to develop phones or devices to protect users from radiation.

Nearly half of the plant's wafers were made for two cellphone manufacturers, and these companies were suddenly out a critical part.

Voice Signal Technologies, for example, makes software for cellphone manufacturers that converts text information into phonetic information without any user training.

What about the cellphone manufacturers?