Sony 在旗下的 developer 网页，发布了适用于 Xperia Arc S, Xperia Neo V 和 Xperia Ray 的 Android 4.0 Ice Cream Sandwich Beta ROM。
Today we release an Ice Cream Sandwich (ICS) beta ROM, as a follow up to the previously released ICS alpha ROM. In line with our goal to support the open developer community, we want to give you the chance to try out our coming upgrade to ICS (Android™ 4.0) in this beta version.
相对于 Alpha Release，这个 Beta 版本亦有多项改进。
– 用户界面改进
– 锁屏画面可开启相机和操控音乐播放器
– 改善 GSM, FM Radio Firmware
– 电邮界面改进
– 快速拨号
不过由于是 Beta ROM，内里不会有 Google Apps, Bluetooth, Wifi
Please note that the Google Mobile Services (GMS) apps (for example Gmail, Google Maps and Face Unlock), Bluetooth™ and Wi-Fi™ are not included in the beta release due to that they are still waiting for the certification and type approval to be finalised.
若果你有刷 ROM 经验，可下载自行刷 ROM！要留意只适用于版本为 4.0.2.A.0.42 的 Xperia Arc S, Xperia Neo V, Xperia Ray，并需要先行 Unlock Bootloader。
若果你是日常用家，还是等待 Sony 的官方正式版本发布。可以先欣赏在 Xperia 手机上的 Ice Cream Sandwich 操作示范。
http://www.youtube.com/watch?v=qJbDl8aikUk
资料来源：Sony Developer World