Or is Valve/EA trying to ride on Halo 3's PR coat tails with a 'Midnight Madness' ?
Except that they did this very same thing with HL2. I believe they did it as well with Ep1. Heck, people were in an uproar when Bioshock wasn't unlocked at midnight, as it had come to be expected.
So no, they aren't copying Halo 3. (There's nothing there worth copying anyway.....)

Edit: Except the Warthog. A physics defying, machine gun carrying 4-wheel vehicle of death (to both sides) is probably worth a nod.
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Xfire/Steam: GreySpire (alias Bucky)
http://www.pclinuxos.comThis comment was edited on Oct 6, 00:08.