(I apologize if this has been answered before - I tried the search and didn't find anything!) I am looking for a case for my iPad 2. I would like for it to have a zipper, so it is actually protected from dust/sand/lint/etc. when I throw it in my backpack or suitcase. BUT, I would also like to use it as a stand. As it is, I can only find zipped bags with the stand functionality. It's always either the smartcover-like folding mechanism without a zipper, or a simple zippered sleeve that can't be used as a stand. Is there something out there that offers both?