Vault Source Code Control

http://www.sourcegear.com/vault/index.html

A commercial product for windows.  Not opensource. 

Referred to as a "compelling replacement for Visual SrouceSafe.

Seems to be command line only outside windows:  http://208.74.205.69/t5/Autodesk-Vault/vault-on-linux/td-p/1863863

To run the command line version under Linux you need to run Mono.

Seems to handle branches updates better than SVN:  http://www.sourcegear.com/vault/documentation/vault-vs-subversion.html

Has Eclipse Plug-in:  http://www.sourcegear.com/vault/downloads.html

Could not find a good review of Git and Vault, but those discussing the issue prefer Git over Vault:  http://stoopad.com/2008/12/10/sourcesafe-to-vault-to-subversion-to-git/