As expected, Apple has sent out invitations to select members of the media inviting them to a special event on March 2. The image accompanying the invitation features a mockup of iOS’s Calendar app set for the date of March 2, with a corner peeled back to reveal an image of the original iPad underneath, and the tagline “Come see what 2011 will be the year of.” Apple is expected to unveil the second-generation iPad at the event; the…