Hello
First of all: been using Mandelbulber for a few weeks now and I absolutely LOVE it!! Don't know of the maker(s) of the program are also in this forum but major compliments from me!!
Over here guy from Holland, name is Menno but (again) using my nickname Meegja. Busy with 3D art now for over 10 years, mostly with Bryce.
Just lately I started using 3D fractal software like Incendia and mandelbulb plug-in for CS5. But Mandelbulber really rocks way more. Very addictive too
My stuff made with Mandelbulber can be seen at DeviantArt, see
http://meegja.deviantart.com/gallery/. There are plain renders but also anaglyphic images (red/cyan 3D glasses).
I love to experiment and Mandelbulber is just made for that
Menno