Fractal Forge is an application written in Delphi that lets you easily explore the branches of the Mandelbrot set. It has received several very positive reviews.
The program certainly cool, but not the license GNU GPL !!! Do not deceive people! clearly describes the limitations in the readme file !!!
This is a fantastic program! Easy to use, plenty of options to tinker with, and fantastic results. It even runs well on Linux with Wine (I'm using a Lenovo U260 with an Intel i5 processor and Linux Mint 11 to make that assessment). There is only one bug that I can find--the multiprocessor algorithm stops all sectors when one of the processors finishes its task, leaving the image with one computed sector and ($number_of_processors - 1) incomplete sectors. The single-processor algorithms, however, are quite satisfactory.