From engadget:

We know, you've got a zillion ways to get your Pong on whilst lounging around in your geeked-out crib, but how in the world will you deal with the withdrawals on this year's trip to Vegas? Thanks to Bally, you may not have to suffer at all, as Nevada gambling regulators recently approved the concept behind Bally Pong, a "slot machine that would for the first time allow hand-eye coordination to affect payout." Put simply, the machine would enter a 45-second round of Pong if three bonus icons line up on the five-reel video slot machine, and regardless of one's skill, a minimum award would be doled out simply for reaching the bonus. Oh, it gets better -- Bally also said that this was just "the first in a series of skill games (including Breakout!) it had planned," so those looking to see a hint of vintage when they hit the casino floor should be very pleased if everything goes as planned over the next few months.

See the whole piece at:
http://www.engadget.com/2007/07/29/bally-bringing-pong-to-casino-floors/