In addition to lots of great apps for lawyers, like Black’s Law Dictionary, there are other sources that are worth a look.  Among the no brainers are:

• The U.S. Declaration of Independence
• The U.S. Constitution
• The U.S. Bill of Rights

They are all free in the iBooks Bookstore, thanks to Project Gutenberg.  iBooks are great because they download to your iPad and therefore you don’t need an internet connection to read them.  So, be sure to download these titles and bring your iPad the next time you’re headed to argue before the Supreme Court.