NUU has debuted its new MiniKey keyboard case for the iPhone 4. The MiniKey is a soft-touch, snap-on style case offering open access to all ports, controls, and cameras, as well as a slide-out, landscape-oriented QWERTY Bluetooth keyboard. The keyboard features a magnetic closure, numeric keys accessible via a function button, a command button for access to features such as cut & paste, a toggle button for switching between the MiniKey and on-screen…