About LXVII
(Pronounced “67”) A faithful simulator of the original hp-67 calculator implemented with Cocoa on Mac OS X. Its features include:

- A document based, multi-threaded architecture. Have as many copies and as many programs running as you have resources.
- Programmable, so you can redefine the calculator to fit the task at hand.
- Every button and function has a keyboard shortcut.
- An paper tape panel for printing registers and programs.
- A live stack register and memory display.

What’s New in this Version
- Add large icons for Leopard
- Give the yellow button legends more contrasts against Leopard’s darker, buffed metal.
- Fixed a bug with recalling the A-E registers.