There’s the possibility that Microsoft’s Courier may be, in fact, not as dead as previously thunk. Microsoft just received a patent for an ‘ornamental design for a dual display device’ – one that, by the looks of it, is the ghost of the Courier. Remember the Courier? It was a concept tablet creating a buzz back when the iPad was still called ‘possible Apple tablet??’ and the world was content with real portable computers that do real computer stuff.  Though never officially announced, it was officially shelved. It was widely believed that Microsoft had every intention of going toe-to-toe with…