The 2.3 version of SmoothType for Mac was available as a free download on our website. The software belongs to System Tools.
From the developer:
SmoothType makes your screen look more like the printed page. Using a technique called anti-aliasing, SmoothType blurs the jagged edges of bitmap fonts with shades of gray, effectively doubling your screen resolution. This is the similar to the technique used by some laser printers of varying the size of the dots to improve the printed image quality.