A:
Yes, you can print wireless. Your iPad wireless is all you need. I don't have iStuff, I have Samsung, but yours should work. On your iPad, goto Networks, where you should be able to add the printer. My HP plugin driver only has options: Number of copies, color (black white or color), Page size (Legal, 4x6, 5x7, etc), and Orientation (portrait or landscape)
Good luck!