To connect with your Mac from your iPhone/iPad/iPod Touch, you need to install and run the CRK Server app on your Mac. Download it for free here:
Create and edit elaborate control panels with buttons, sliders, dials, panners, and circular menus that wirelessly control any application on your Mac using your iPad, iPhone, or iPod Touch.
Customize the layout and look with images, icons, colors, and shapes. Assign simple keystroke functions or elaborate scripts to taps and gestures.
Work like a pro in Photoshop, Illustrator, SketchUp, Aperture, Cinema4D, Final Cut, etc....
Swipe to rotate a 3D model, or dial to adjust brush size, or pan with your fingers to navigate a canvas, and access any tool with simple taps — without moving your mouse and drilling down menus. Insert form letters with simple taps and work efficiently.
Purchase professionally made keypads from the in-app KeyPad Store: Keypads for Photoshop and Ilustrator already available.
Keypads for Aperture, AutoCAD, Elements, Excel, Final Cut, Illustrator, iMovie, InDesign, iPhoto, Lightroom, Modo, Photoshop, Powerpoint, Premiere, SketchUp, Word coming soon.