Not sure what you are talking about as to the "pushing your own app"... I am not aware of the OP having an app... the thread is about using a microphone on the touch.
Yes, I have a phillips SHH1610 microphone and it works great. My only problem is getting the recordings OFF my touch. No software works well for users who work with a large wireless network (thus these local wifi transfers don't work)... Waiting for Griffin to get their windows solution finished...
How well does that Phillips mic pick up from across a room, for a lecture or class?