目前初步測試發現在不同桌面間的切換便順了，上一版切換會有點卡卡的
然後關閉螢幕也恢復成 4.1 版時的按電源鍵馬上就關閉螢幕，真搞不懂 4.2 幹嘛沒事改成漸暗....
至於省電的部分還無法測試，剛更新而且我在充電中
轉貼友站網友從 XDA 那邊挖來的更新訊息：
1. UI speed/smoothness has improved alot!
2. Album app - lags seems to be finally gone
3. Launcher - not lagging when viewing widgtes, scrolling trough homescreens
4. Throw - finally working for me
5. Update center - Phone icon has been changed :/
6. BATTERY reading bug seems also gone..
7. Lock/unlock improved responsivness
另外多了兩個新的無用 APP，分別是：趣看書 和 看雜誌 .....
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