Chocolate mousse without eggs I've a friend who is allergic to egg protein, and my wife inadvertently raved about my chocolate mousse to her, causing some food borne awkwardness that I'd like to erase with an eggless mousse. 

I've done some experimenting though, and I'm not happy with the results. Can anyone think of a substitution that would hold air and provide the light mousse-y texture, but not be an egg? Can't be corn-based either, due to an additional corn allergy.
Try Hervé This's chocolate Chantilly.  Water plus chocolate.  Quite stunning.