Dear Tim,
I understand fully, and it's a wild world out there... . I am not looking for a replacement for my setup, since it is pretty complicated, with audioreactive visuals (VDMX on a Mac), and I don't see stuff like this happening on ios yet. But since you asked (and since you named WZBL): I hope for much further "tweakability" concerning the visual aspect. WZBL doesn't do very much for me, since there's hardly any (tweakable) audioreaction inside, I would suggest Apps like Pixivisor or Quantum Vj (rudimentary, but nicely experimental) for further development-ideas. The picture/video shouldn't just move about in a mechanical way, but somehow be responsive to audiofrequencies/mididata. That's where Wotja with its Noatiklbase comes into play for me, because it's all already in there, and you guys did greeeeaat work with the underlying programming! Thus I kinda hope for some kind of "intertangibility" of midi/audio/visuals/text (with the possibility of customizing it...). Also, concerning the momentary state of Wotja, visible text-input shouldn't just appear, but also be "playable", with some kind of generative aspect to it, too. And, what also comes to mind, I couldn't use Wotjas visuals for my shows, since it always has its logo dominantly appearing (and I didn't find a way to make it leave...).
I know, this might be quite a package, and I hope you take it in the best possible sense, it might take long still, but that's what I believe the future of ios (and instantaneous song/video- production will become. I see you guys at a culminating point of all possible crossroads, and wish you the best concerning the future (even if you don't decide for everything I ask).
If you are interested, some of my works are here (they all rely heavily on Noatikl, I love you guys!):
www.tobiasrobens.com/101/animalaleman
Cheers, t