I have had several people ask what the state of development is on this application. To be honest, I have not touched it in a long time. Technically speaking, if you can install cherrypy on your iPhone (no, it’s not in a Cydia package) it should work. Otherwise, you may be out of luck.
I really would like to get it working on 2.0, but I am strapped for time at the moment. I shouldn’t even be spending time writing this post; I have lots of other things I need to do. Cydia has a nice pyObjC package now I see, but I daresay that you will not see any developments in jComix for the next few months as I try to wade through all the exams and work I need to get done.