joden,well, I wasn't meaning you're stupid (but it seems I stinged your ego)
So,since you're such a wonderful thinker (which I'm not), just tell me,because I'm too stupid to find the answers:
WHat's the point in a "Player App" if you can't edit?
What will you use it for?
Also what will this player be able to play if you inject a CWP with audio tracks,plugins,MIDI and virtual instruments,Unprocessed audio with MIDI on GM Synth?
What will be the price you'll buy this player and how many downloads will there be?
How long will it take to develop it on iPad and Android and for what cost?
Who will use it?
WHat you're looking for is FLStudio Mobile. It exports MIDI so you may import them in cakewalk.