I've never played Blackout but it looks great. Had a chance to buy one lately for a decent price passed it up i've got two Williams and looking for a Bally or Stern title. Blackout also stole some sounds from Gorgar so a bit of a turn off to own both machines. But, it looks like a great game i'd like to play one.
Blackout also appears to take a lot of styling cues from Flash.