Just a really quick sketch for those who may still be having trouble visualizing what the new mini touchscreen iPod nano-shuffle-micro might look like. Though the radiuses are pretty close here, the real thing’s surely going to be a little different. Expect less metal around the screen, the Dock Connector to be centered below the screen with the headphone port off to its right, and the top to have some nice iPhone 4-style buttons. We’re…