KeyRemap4MacBook is a keyboard remapper for Mac OS X.

Not to mention the change of simple key remap, it has the special remapping like Emacs-mode, SandS-mode (Space and Shift).

Very small & concise source code written with C++. Use it as codebase of your original keyremapper.

What’s new in this version:

Version 2.2:

* [BUGFIX] Fixed the bug around “key to modifier” (enter2*, return2option, jis_eisuu2*, jis_kana2*).
* Support PowerBook enter key.
* Added new remapping.

Website
Download KeyRemap4MacBook