https://qooah.com/2012/11/04/android-4-2-%e6%99%82%e9%90%98%e5%92%8c%e9%8d%b5%e7%9b%a4%e6%87%89%e7%94%a8%e5%b7%b2%e7%b6%93%e5%8f%af%e4%bb%a5%e6%90%b6%e5%85%88%e8%a9%a6%e7%94%a8/
Android 4.2 時鐘和鍵盤應用已經可以搶先試用