On the other hand if you are still using Xcode 3 only to avoid the Xcode 4 learning curve it is time to make the switch.

从另一方面来讲，如果你仍然在使用Xcode 3只是为了免去Xcode 4的学习曲线的话，那么是时候做出转变了。

youdao

To be honest I have not used Xcode 3 for months so I will not miss it but if you have a reason why you need to remain with Xcode 3 you should probably avoid upgrading to Lion.

老实说，我已经几个月没有用x code 3了，因此我对它倒没有什么留恋的，但是如果你有理由要保留X code 3的话，那就应该尽量避免升级到Lion。

youdao

Xcode 4.1 is a free download and what is actually downloaded is the Xcode installer.

X code 4.1是免费下载的，实际下载下来的是Xcode的安装程序。

youdao

These strings can be added using Xcode's Project editor, which is in the Info tab.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog

These tools include the Xcode IDE and the Instruments analysis tool, among many others.

ENGADGET: Apple seeds iOS 6 beta 4 to developers: here's the changelog

Now developers will be able to use tools familiar to any OS X developer, such as Instruments, Xcode and Interface builder, alongside a new tool, the iPhone simulator, to craft applications.

FORBES: IPhone Goes Corporate