144 keys! I think that's a record, outside of this kind of thing:
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Well nothing tops that megalithic keyboard but there are others with more than 144 keys but it's what you can do with the keys is what matters.
Let me show you it's features:
Work Saving 24 Extra Programmable Function keys PF1 - PF24
Up to 320 programmable keystrokes per key
Great solid, "clicky feel" for keyboard users who recognize quality!
2 sets of function keys F1 - F12 (at top and left)
8k Ram total with internal lithium battery backup (non volatile memory)
8 way cursor keys; Fast Repeat Key
Caps Lock and Ctrl keys can be swapped under Windows '95-98
Works with any IBM AT compatible computer
Software included to save programming to disk and restore to keyboard
http://www.monu-cad.com/MCK142_Keyboard.htm