Xcode 4.3 Released

Wow! a lot of changes...

- The Xcode 4.3 Toolset Is Repackaged as a Single App

- Command-Line Tools Are Optional

- /Developer No Longer Exists

- Auto Layout Is Now the Default for All New Cocoa Projects

It looks like command like tools are now an optional install. That should help resolve some of the Ruby on Rails issues for OSX and XCode 4.x.