MacVim
Every proper geek is faithful to his text editor, thus the great battles between vi and Emacs users. Working with UNIX servers taught me how to use VIM. I came across MacVim project, Cocoa front-end to the powerful VIM editor that integrates with the OS X desktop. I can now use the same editor, and shortcuts, on all the operating systems that I use!
- Native Cocoa interface
- Native OS X shortcuts cmd-o, cmd-s, etc
- Non-intrusive Safari like tabs
What else could you possibly want? Check it out!