3g phone for under $10 shakes up mobile market. competition in the mobile-phone sector will move up a notch this week as 3, owned by hong kong-based hutchison whampoa, undercuts vodafone and o2 by offering 3g handsets for as little as $9. the company will begin offering the sony Ericsson k608i and the nec 338 for $9 to those customers on its $60-a-month tariff who buy direct from its website or by telephone. tag:3g | posted in: specific 3g news business case our 3g support service - 3g devices [daily 3g news]...