* more documentation


* more low level index actions
  - (with_index), checkout-index, read-tree, write-tree, update-ref

* git revert, stash, rebase

* diff additions
  - annotate, blame


* submodule support

* repository admin
  - prune, fsck, pack-refs, gc, count-objects, unpack-objects

* email/patch integration
  - request-pull(email_address), git-am, git-apply
  
  
* compatible with git 1.4

* More Error Examples

* More Git::Status methods


* Speed up through pure ruby

* Speed up through C bindings to libgit-thin