Dear SYSTEMAX Software Development, Paint Tool Sai is a very well done and innovative painting and drawing tool for digital artists. However, it is only available for those using the Windows platform. Those who own Mac computers do not have the oppurtunity to use Paint Tool Sai without running Windows on BootCamp or a Virtual PC. Virtual PCs often do not make full use of the computer's hardware and Bootcamp requires users to reboot their computers. The cost of Windows for both Bootcamp and Virtual PCs also makes these methods of obtaining Paint Tool Sai unavalible to some. Thus I believe a version of Paint Tool Sai for Mac should be developed.