Here's whatsnew:
Version 1.57 (December 2, 2007) - "System 1"
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The year is 1987, and NASA launches the last of America's deep space probes.
In a freak mishap, Ranger 3 and its pilot, Captain William "Buck" Rogers
are blown out of their trajectory into an orbit which freezes his life support
systems and returns Buck Rogers to Earth 500 years later.

We had begun to think it would take 500 years to emulate Gottlieb System 1...
But thanks to an anonymous MAACA member, we finally got good reads of the
bios chips and they are now emulated.
Get our your cards and backgammon boards, lucky Buck is back!

1.57 - Changes Twiki says you don't want to know
Added Stern Harley Davidson (Harley 3.0)
Added Stern Speech emulation - sample files are no longer necessary
Added Gottlieb System 1 emulation - still has a bonus count bug
Improved GI dimming
Added Inder Lap By Lap
NBA Fastbreak Clock emulation corrected

Get it here:
http://pinmame.retrogames.com/downloads.html

-Trebor