Here is reported range is 60cm; but to my experience this wasn't a huge limit, providing the correct installation setup. My setup expected the user pointed with its finger towards a huge mapped projection. If this is your situation also, vuo Leap nodes is the best out-of-the-box solution as you get a xy position of the user pointed position. Last Vuo release supports Kinect2, but I see this less useful for this specific task.
jersmi, blob tracking would be great in Vuo but it's not yet here. A workaround that could work in particular situations, like the task of distinguish if the tracking point hits a body over a contrasted background like a star over a dark sky, could be "sample color from image". I used that in a composition to check if the tracked point coming from a leap motion device was inside or outside a black and white mask. Could work even if you want to check if you are pointing a coloured shape or not.