PC products only. The BAT is a chording keyboard which requires only the smallest hand movements. Mac and PC products are offered. Key Tronic Key Tronic is a long-time manufacturer of keyboards. The products in their Lifetime series are PC-only.
Products are available for many different platforms.
Kinesis Adjustable ergonomic keyboards designed along classic, split-keyboard lines. Pricing and reseller information is available on-line. Microsoft Keyboards Their Natural Keyboard is supposed to provide relief for typing-related injuries. USB versions now ship with full Mac and PC driver sets. MicroSpeed MicroSpeed makes excellent trackballs for Macs, PCs, and UNIX workstations.