SmartSVN - SmartSVN is a graphical client for the Open Source version control system Subversion (SVN).
SmallDevTools - Handy developer tools with a delightful interface
TortoiseSVN - The coolest interface to (Sub)version control
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
Xversion - Super easy enterprise class version control.
Profitable developer tools database - A database of 103+ hand-curated profitable developer tools