I found the facial recognition system to be fairly accurate and incredibly satisfying to use. In my tests, the system was able to recognize me roughly 90% of the time, even when I was wearing eyeglasses or a hat or making some silly face (for testing purposes only, of course). The times when it didn't work were usually when I was in an extreme lighting condition or holding the phone at an unusual angle. But getting your face rejected, while perhaps mildly demoralizing, is not a big deal; you just enter in a backup password or pattern and you're good to go.
谷歌确实需要注意的是面部识别选项比模式，密码或PIN的安全性较低;手机上的免责声明竟把地告诉你，“人谁类似于你”可能解开您的手机激活该功能。有些用户报告能够欺骗系统到手里拿着手机拥有者的照片解锁;我试过，没能复制这一点。我还测试了系统，我的兄弟，谁的人往往误我，但手机不会解锁与他的脸。
The take-home message: Facial recognition is convenient, novel and impressive -- and in most cases, it's pretty secure. But if you really need to safeguard your data and can't take any chances, it might not be the right choice for you.
相机和画廊
Android 4.0 includes a brand spankin' new Camera app that's chock full of surprises. The app's interface boasts some significant improvements, but the added functions are what really steal the show.
One of the high points is the newly implemented support for zero shutter lag. That means you can snap one photo after another in rapid succession without ever having to stop or wait. It's actually a little strange at first -- and can make it somewhat challenging to get your image focused, if you're moving really fast -- but it's a fantastic feature that makes photo-capturing easier than ever.
相机应用有一个很酷的单运动全景模式，那就是，让你把宽角度的图像。所有你要做的是挖掘全景图标并按下快门按钮，然后慢慢在要拍摄的区域移动相机。当你完成，你轻按快门一次，且软件可让整个事情连成一个无缝的图像。它工作得非常好。
在视频方面，相机应用程序现在包括一系列的实时视频效果 - 扭曲你的脸，例如，或使其表现好像你在太空中漂浮。他们更好玩比什么，但我发现，他们提供了一些轻松愉快的娱乐一边与朋友视频聊天。相机有几个严重的新的视频相关的工具，以及包括快照捕获工具，可以让你抢静态图像，而你正在录制视频。
新的相机应用程序，并重新设计图库应用程序put photo sharing front and center, with a host of on-screen options to send images to any share-ready service. Ice Cream Sandwich also includes native photo and video editing tools. I found the video editing suite to be a bit limited in its capabilities, but the photo editing options are quite robust, with commands for cropping, sharpening, removing red eye, modifying lighting and making a variety of color adjustments. The photo editor can apply quite numerous special effects, too, if you're into that sort of thing.
Other Ice Cream Sandwich sprinkles
I could write an entire book trying to cover and review everything that's new in Ice Cream Sandwich. I haven't even gotten into the revamped system settings menu -- it's far simpler and easier to use -- or the newNFC-based "Android Beam" functionthat lets you share info with other phones by tapping the devices together (cool in theory, but fairly limited in practice at the moment).
You've also got random flourishes like the long overdue ability to capture screenshots and the new fine controls for managing and monitoring your network data usage. Many of the system apps are vastly improved as well, including Gmail, Calendar, People (formerly Contacts) and the浏览器-- which now features faster page loading, automatic Chrome bookmark syncing, offline page saving and graphical tabbed browsing.
But you get the picture. Ice Cream Sandwich is more than just another upgrade; it's a significant new beginning for the Android platform. It isn't perfect -- the software has a handful of inconsistencies and areas for improvement -- but it's astonishingly good. I suspect it'll go a long way in delighting both hardcore enthusiasts and casual smartphone users.
Bottom line
Android has always been a powerful platform. With Ice Cream Sandwich, its power reaches new heights -- and its polish makes the power more palatable than ever.
This story, "Google's Ice Cream Sandwich -- a new era for Android" was originally published byComputerworld .