No doubt, there is no iPad case that can fulfill all of our standards. But if you need to place your iPad on a stand or keyboard dock, the Speck CandyShell iPad case should suit you.
Just like Speck Fitted series, CandyShell is another popular series by Speck. CandyShell iPad case is constructed of seamless hard shell material, and comes with soft rubberized interior lining, and button covers. All of these can keep the iPad from shocks, scratches, and dust. The predominant feature is the flip-back panel placed at the bottom of the iPad case, which allows you to use with iPad dock and iPad keyboard dock with more ease.
Speck CandyShell is available in two colors, including black and purple. Each one costs 49.95 USD. If you want one, you can get it from Speck.
Update: now the Speck CandyShell is available for $39.99 USD at ThinkGeek.