Kenneth Reitz, creator of OSX-GCC-Installer on great news today from Apple:
Today, Apple added a beautiful new package to their official developer tools suite: Command Line Tools for Xcode. It's a 171 MB download that includes all of the tools a Homebrew should ever need. Best of all, it contains the proprietary headers that I couldn't ship myself.
You can download and try it out today. All you need is a free Apple ID.
Official Homebrew support is on the way.
To stave off further questions, yes, you can use the "Command Line Tools for Xcode" package with Homebrew. And we will support it.— Max Howell (@mxcl) February 16, 2012
Linked from: http://kennethreitz.com/xcode-gcc-and-homebrew.html