https://qooah.com/2012/02/26/mwc-2012-samsung-mwc-%e9%a6%96%e7%99%bc%ef%bc%8c%e6%93%81%e6%9c%89%e6%8a%95%e5%bd%b1%e6%a9%9f%e5%8a%9f%e8%83%bd%e7%9a%84-android-%e6%89%8b%e6%a9%9f%ef%bc%81/