Pixologic recently adopted the brain child of hobbyist programmer Tomas Pettersson. He created a sculpting application like zbrush, mudbox, 3d coat, etc. There are so many.
However, this simple sculpting software uses dynamic tessellation. Its the first of its kind and has the smallest footprint on both your hard drive and ram. It is also FREE!
First impressions is the slick and easy to use and understand interface, ability to change the tessellation as needed in certain areas by painting them, or change the resolution gloabally, and is perfectly capable of performing all of its powerful sculpting features at low polygon counts and game resolution. It truly is a unique program and is a very worth trying out.
OWN IT FOR FREE NOW!
Also, if you make anything, post them here! Share creations, thoughts, and comments.