It's too bad they aren't selling this Smart Phone Note case for iPhone 4 outside South Korea, because it's an excellent idea—especially if you're into the whole taking-notes-on-paper thing. The protective foam design of the cover is neat.
The window to the world is good, so is the way it holds your iPhone 4 in both landscape and portrait positions, the space for headphones, and the credit card holders. For a business or student type who depend on their iPhone as their on-the-go workhorse, I can't think of a better option. Even more when you think it's just $30. [DesignTag via OhGizmo]