This thread http://forums.teamestrogen.com/showt...=vegan+dessert has lots of information.

One egg: 1T of flax seed + 3T of water, milk or faux milk. Mix well. Let sit a few minutes and whisk until it looks eggy.

Buttermilk can be substituted with a cup of faux milk and ?1 Tsp? of vinegar.

There is also a product called Ener-G (powder) that is an egg substitute. It is basically tapioca starch and some leavening. Flax works well if the egg is in for binding; Ener-G works (or flax + a little baking powder) works if the egg is in the recipe for leavening.