At our Real World conference last May I showed a sneak peek of the work we are doing to support iOS in Real Studio. At that time, we had only implemented a few controls, really just enough to be able to give a demonstration.
Now we are working on support for graphics. As you can see in the screenshot below, we have the canvas control working with the basics of the graphics class.
The order in which we are developing is designed to determine any major issues as early in the process as possible. Controls are very straightforward so we are not spending a lot of time on those right now. We'll post more updates as development continues.