@pizzikoku: Ah, nice idea. The mobile version works just perfect. But believe me: input of complicated formulas that contain basic symbols like any kind of brackets, accents (like ^) or +/- is a pain with the on screen keyboard. Would be perfect to have a special keyboard for this usecase like with the official WolframAlpha android app. Since there exists an official WolframAlpha API, it would be theoretically possible to rewrite this android app for our M92. But I don't think that anybody will actually take the effort.