From the git mailing list:
On Tue, Sep 20, 2011 at 3:40 PM, tom smitts [email protected] wrote:
Do the git maintainers really think any mac users have
 a clue which git install package to download?  You
put some arcane chipset designation in the package
 name!  Why make mac installers at all?  Mac users
know their operating system number, e.g. 10.6.7,
and that's all.  I doubt Windows users know any better.
And I doubt you can find anywhere on a mac that says
 i386 or whatever the heck the other dumb
designation is.
I definitely feel his pain, the link we use for the OSX binaries is confusing beyond belief. We should maybe cultivate a custom list of binaries?