Marketwatch has an interesting article on how you can use a 529 College Savings Account as part of your estate planning process. Estate planning is all encompassing so it is important to use a variety of tools to give gifts, minimize taxes, and make your wishes known.
The article discusses the importance of using a 529 College Savings Account for grandparents to grandchildren and how this can minimize the size of an estate for estate tax purposes along with providing gifts to your grandchildren. Of course, the same reasoning can be applied to children.
The article is Using a 529 college savings accounts for estate planning.