<A HREF="http://news.zdnet.com/2100-1035_22-6131929.html?tag=nl.e589">Mobile phones costing less than $15</A> will be available in developing countries by 2008, Motorola Chairman David Brown has predicted. If handsets can be delivered that cheaply, it could lead to another 100 million people a year getting their first phones, he said. The thrifty price tag on the handsets is partly because of chip manufacturers' commitments to supply inexpensive silicon components, Brown said.