but at least this shows how things might look like... one day

admittedly - I was extremely surprised, when I noticed that the LEMUR setup software (on Mac or PC) builds a wireless connection to the Lemur app running on the iPad.
Obviously acting exactly as it would do with the hardware device.
Those familiar with Scope SDK should feel right at home, so check this software out

Us regular folks may need a couple of examples to peek at, but there are plenty...
(download from the Jazzmutant site)
Imho it is the most powerful toolkit to build midicontrollers for existing Scope setups.
It's very responsive, much faster than anything I tried before.
cheers, Tom