But executives say they remain undaunted. "There's no reason why we can't extend this to hot spots," Champness said. Communications gear makers Avaya, Proxim and Motorola are codeveloping a mobile device that roams between cell phone networks and Wi-Fi wireless hot spots. The three communications manufacturers believe the phones and supporting gear will be among the first from major companies to link two of the world's most popular kinds of wireless network, said Bo Pyskir, senior director of business development at Motorola.

CNET también está disponible en español, Don't show this again, "We look forward to refuting Sendo's baseless claims," Murchinson said Monday, Microsoft is scheduled to file a more formal denial in court later this week, Beginning in 1999, Sendo was supposed to develop a Global System for Mobile Communications (GSM) phone based on a new cell phone operating system from Microsoft, then called "Stinger" and now known as cactus iphone case Smartphone 2002, The OS is designed to combine the functions of a cell phone and a personal digital assistant, Microsoft was expected to provide financial support for Sendo's research..

In November 2002, however, Sendo announced it would be dropping the Microsoft software in favor of a rival OS called Symbian, developed and owned by some of the biggest phone makers in the world, including Ericsson, Nokia and Motorola. Meanwhile, in late October, Sendo rival High Tech Computers, based in Taiwan, unveiled a phone designed around Smartphone 2002. U.K. wireless company Orange, a GSM carrier, is now selling the phone. "The speed-to-market was not achieved by Microsoft's legitimate skill and expertise," Sendo attorneys allege in the lawsuit, "but rather by its secret plan to pillage Sendo of its technology, convert that technology to its own use, steal Sendo's customers and leave Sendo cash starved and on the brink of bankruptcy.".

HTC and Orange, which are not defendants in the lawsuit, were not available for comment on Monday, The Sendo-Microsoft partnershipAs part of the original deal, Microsoft had also agreed to invest $12 million in Sendo, an investment that entitled Microsoft to a position on Sendo's board of directors, according to the lawsuit, Sendo's work on the new phone began immediately, but so did the problems, Sendo said, The company said Microsoft was supposed to send software that was "code complete"--meaning it worked, Instead, Sendo alleges Microsoft cactus iphone case gave it a program with "numerous critical problems" and "failed to take steps to remedy."..

The Stinger phone was supposed to debut in August 2001, but the software problems forced Sendo to push the release date back to December 2001, Sendo said. "Despite numerous previous representations by Microsoft that Stinger software was (ready), it was becoming clear that it was not," Sendo attorneys wrote in the lawsuit. Sendo counted on revenue from the sale of the phone it was developing, so the launch delay created a "cash flow crisis" that was discussed at board meetings attended by Microsoft's appointee, according to the suit.