Currently it has three main features (the free version has only 1): Buttons, Sliders and Multi-Touch. [The slider screen also features buttons and tabs, but i am guessing it is called sliders because these take up most of the screen.]

Anyhow, the multitouch feature is very nice, although it only goes up to 4 fingers (but who needs more) and i had some ghost fingers in there every once in a while. The sliders seem a bit unresponsive still but i am guessing that will be fixed in a next update. But it has never crashed on me so far (which some apps tend to do a lot) and the data seems to arrive almost instant in my patches.

So i can definitly say i will be experimenting with this App alot and might even feature it in the upcoming max/msp course. But most of all: it takes the wind out of my sails for wanting to create an app exactly like this one (but i am still missing some features, so who knows)