Apple will hold its much-rumored iPad event on October 22, reports AllThingsD. While the event will focus on Apple’s upcoming fifth-generation iPad and iPad mini, the new Mac Pro and OS X Mavericks will also be featured at the event. Rendering of the 5th-generation iPadPeople familiar with Apple’s plans tell AllThingsD that the company will hold its next invitation-only event on Tuesday October 22. The focal point of the gathering will the latest updates to the company’s iPad line, but new Mac Pro and OS X Mavericks will likely get some stage time as well, I’m told.Apple’s fifth-generation iPad will take on an iPad mini-style design, resulting in a thinner, lighter t