which PPA has the most current version of git for 12.04? ppa:git-core/ppa is outdated

Just installed git via ppa:git-core/ppa and got 1.7.9.5 when the current version is 1.9.2.

$ sudo add-apt-repository ppa:git-core/ppa
You are about to add the following PPA to your system:
 The most current stable version of Git for Ubuntu.

For release candidates, go to https://launchpad.net/~git-core/+archive/candidate .
...

$ sudo apt-get install git
Reading package lists... Done
Building dependency tree       
...

$ git --version
git version 1.7.9.5
...

As a bonus question, why aren't there more deb packages for widely used apps like git? I know apt-get works fine but I find the PPA system to be kinda haphazard. I don't know if debs would be any better; just wish something better existed.

There's no tarball at http://code.google.com/p/git-core/downloads/list for 1.9.2.

You should update your package list as version 1.9.2 is well available from the git-core ppa.

sudo apt-add-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git=1:1.9.2-0ppa1~precise1

Peter van der Does's PPA contains 1.9.2 for Saucy.

sudo apt-add-repository ppa:pdoes/ppa