IDE for use on a Java-enabled smart phone?
Not that I recognize of, commonly you'll create applications on a desktop computer equipment (PC/MAC whatever) and also download/control the application on the phone. Additionally I do not assume Java is readily available on a criterion (non - fractured) iPhone.
There was a hand based C compiler. I had some problem locating it though, yet it is called OnBoard-C. It really did not specifically have an IDE, it assembled notes. Taking into consideration there is an absence of ingrained compilers, I would certainly be stunned to locate complete ingrained IDEs, Oh. I remember there being a Scheme or Lisp also.
This possibly early yet, congrats, you simply located a market particular niche.