Although analysts believe that Motorola Xoom Tablet PCs sold only about 100,000 units in the first quarter, the company's official figures show that shipments have reached 250,000 since its release in February this year. Motorola Mobile's first-quarter earnings rose 22% to $3 billion a year earlier, according to Pocket Gamer of the US mobile gaming website. Motorola did not disclose Xoom's specific sales, but shipments were nearly twice times as much as analysts had expected. Overall, Motorola's first quarter of all mobile equipment shipments reached 9.3 million units, compared with the same period last year 8.5 million units grew nearly 1 million units. Most of this growth comes from smartphones – the company's first-quarter smartphone shipments reached 4.1 million, much higher than the 2.3 million in the same period last year. In addition, mobile device revenues rose 30% from a year earlier. Reached 2.1 billion dollars. Although Xoom's shipments were insignificant compared with Apple's ipad 2, they were not completely eliminated under the powerful offensive, but they did well, so Motorola is expected to further improve the Tablet PC in the future. Android's share of the smartphone market in the US has slipped slightly, but still as high as 50%, according to NPD, the US market research firm, enough to provide Motorola with enough competitive advantage. As mobile gaming networks OpenFeint into the Chinese market and Android harsh, the Android platform is expected to continue to grow fast this year. Successful companies such as Motorola will also get better, more powerful apps and games.