当大家都抱怨上周末CES的发布延误之后，Android的开发者终于发布了Android 2.1的SDK组件，大家可以猛击这里下载。

在这个版本支持其他版本的移动设备之前，开发者们需要对他进行重新分析，以开发新的Android app组件。虽然没有重大的更新，但是这个版本也做了不少的更新，例如随着webkit变换的壁纸，通信和视图的更新，并且这个os在droid上跑的更快了。

值得高兴的是，这次Nexus One可以有usb驱动了，大家能方便的用usb给自己的google手机备份文件等等操作。

After hopeful developers were complaining about the delay of its release at CES last weekend, Android Developers have published the SDK component for Android 2.1, available now for download on their website.

Third-party developers have a shot to analyze it and build apps for it before this version is even released on most Android-powered devices. There aren’t many significant additions, however, some of which include animated wallpapers along with updates to WebKit, telephony and views. Apparently the OS also runs faster on the Droid now.

Notably, SDK 2.1 also supports a new USB manager for the Nexus One, which could either be used to backup your phone on your computer each time you connect, or use it as a USB drive and transfer files back and forth, or both.