Some major new highlights to Snow Leopard are:

Full 64 Bit:   Currently only 4 GB of RAM can be accessed by an application running on Mac OSX 10.5.   This can cause some pretty big limitation to print drivers, graphics programs, and especialy picture and Image Layout programs like ImageNest.   OSX 10.6 opens a whole new world for ImageNest and we have been programming towards this goal for the past two years.  On OSX 10.6 ImageNest will be able to access up to 16 billion gigabytes or memory,   yes,  16 billion gigabytes !   Going from 4 gigabytes to 16 billion will make ImageNest easily capable of processing layouts that are hundreds of gigatyes in size.   64 bit effectively removes any limits to graphics processing.

Automatic updates for printer drivers:  Snow leopard has printer driver update support built in.  Printers are automatically detected when they are plugged in and the latest driver is automatically downloaded.  The update system will continually check for any updates and always keep your print driver up to date.