Feature proposal

A user interface for searching the repository (i.e. git grep)

The speed of git grep is incredible (helped by git's indexing and by the fact that it only searches checked-in files). It would be great to have a companion user interface, that would enhance the search.
Once the matching text/files are displayed, I'd like to get features similar to those found in GrepWin:

• Open file (at matching line) in editor of choice
• Open path in Explorer
• Blame
• File history
• ...