I just wanted to announce the current release of JWildfire which comes with a new feature called the "interactive renderer". The interactive renderer serves two purposes:
1. Explore random fractals in a really funny way. You can now follow the rendering of a fractal. If you have seen enough just press the NEXT button to get a new randomly generated flame. If you like it you can save it or copy it to the clipboard to tweak it in the main editor. Of course, you can load or paste any (non random) fractal into the interactive renderer.
2. WYSIWYG: Render an image until you are satisfied. Here is no oversampling applied. You can save the image all the time while it still rendering. So you can have a closer look at it to see if its really done, e.g. in a image processing software.
P.S.: If you had performance problems with older versions of the software then this release may be also interesting for you. There were made lots of optimizations and it is using all available CPUs/cores out of the box.
Have fun :-)
You can download the software from the official site: http://www.andreas-maschke.com/?page_id=351