is there a plan to develop an iphone version?
thx

Nope. Not in our plans yet. Two operating systems and development environments are quite different, so doing a port would take up a considerable amount of work and time, which we can't spare right now. We wouldn't mind some developer picking up the project and doing it themselves, since Mycelium code is available on github, but so far no one offered.
i can understand you. how about adding another goal to your indiegogo campaign for an iphone version?